EduSahara™ Assignment
Name : Unitary Method Problems
Chapter : Unitary Method
Grade : ICSE Grade VIII
License : Non Commercial Use
Question 1
1.
If 11 dolls cost ₹77, how much will 28 dolls cost?
  • (i)
    ₹196
  • (ii)
    ₹179
  • (iii)
    ₹193
  • (iv)
    ₹221
  • (v)
    ₹202
Question 2
2.
If 13 eggs cost ₹117, how many eggs can be purchased with ₹315?
  • (i)
    33
  • (ii)
    36
  • (iii)
    34
  • (iv)
    37
  • (v)
    35
Question 3
3.
If 9 l of puja oil costs ₹108, how much will 39 l cost?
  • (i)
    ₹470
  • (ii)
    ₹468
  • (iii)
    ₹494
  • (iv)
    ₹453
  • (v)
    ₹445
Question 4
4.
If 15 l of petrol costs ₹240, how much of petrol costs ₹512?
  • (i)
    27 l
  • (ii)
    35 l
  • (iii)
    32 l
  • (iv)
    37 l
  • (v)
    29 l
Question 5
5.
If 14 men can make 98 birthday cakes in a day, how many birthday cakes are made by 18 men in a day?
  • (i)
    125
  • (ii)
    127
  • (iii)
    128
  • (iv)
    126
  • (v)
    124
Question 6
6.
If 16 men can make 64 belts in a day, how many men are needed to make 80 belts in a day?
  • (i)
    22
  • (ii)
    18
  • (iii)
    21
  • (iv)
    20
  • (v)
    19
Question 7
7.
If Ravi can read 204 pages in 12 hr, how many pages can he read in 13 hr?
  • (i)
    222
  • (ii)
    221
  • (iii)
    218
  • (iv)
    220
  • (v)
    224
Question 8
8.
If Jimmy can read 168 pages in 14 hr, he can read 120 pages in how many hours?
  • (i)
    7 hr
  • (ii)
    15 hr
  • (iii)
    13 hr
  • (iv)
    10 hr
  • (v)
    5 hr
Question 9
9.
If Anthony can read 48 pages in a 108 pages book in 4 hr, how much more time will it take to complete the book?
  • (i)
    4 hr
  • (ii)
    3 hr
  • (iii)
    7 hr
  • (iv)
    5 hr
  • (v)
    6 hr
Question 10
10.
If Vinay can make 180 hotdogs in 12 min, in how much time can he complete an order of 420 hotdogs ?
  • (i)
    23 min
  • (ii)
    28 min
  • (iii)
    31 min
  • (iv)
    33 min
  • (v)
    25 min
Question 11
11.
If 98 men can do a piece of work in 180 days, how many men can do the same work in 168 days?
  • (i)
    105
  • (ii)
    108
  • (iii)
    103
  • (iv)
    106
  • (v)
    104
Question 12
12.
If 120 men can do a piece of work in 120 days, 96 men can do the same work in how many days?
  • (i)
    163 days
  • (ii)
    145 days
  • (iii)
    178 days
  • (iv)
    124 days
  • (v)
    150 days
Question 13
13.
    • If
    • 18
    • men can build
    • 1

      7
    • of a wall in
    • 32 days
    • ,
    • in how much more time is the wall completely built ?
  • (i)
    204 days
  • (ii)
    192 days
  • (iii)
    209 days
  • (iv)
    177 days
  • (v)
    188 days
Question 14
14.
A vehicle can cover certain distance in 154 min, running at a speed of 30 kmph. At what speed must the vehicle run to cover the same distance in 55 min?
  • (i)
    79 kmph
  • (ii)
    87 kmph
  • (iii)
    89 kmph
  • (iv)
    84 kmph
  • (v)
    81 kmph
Question 15
15.
A vehicle can cover certain distance in 70 min, running at a speed of 165 kmph. In how many minutes, the vehicle covers the same distance running at a speed of 150 kmph?
  • (i)
    77 min
  • (ii)
    74 min
  • (iii)
    72 min
  • (iv)
    80 min
  • (v)
    82 min
Question 16
16.
A person has to travel from one town to another town which is at a distance of 720 km. He covers 330 km in 11 hr. In how much more time will he reach his destination?
  • (i)
    16 hr
  • (ii)
    8 hr
  • (iii)
    18 hr
  • (iv)
    10 hr
  • (v)
    13 hr
Question 17
17.
The cost of 18 kg of carrots is ₹432. How many kgs of carrots can be purchased with ₹504 ?
  • (i)
    24 kg
  • (ii)
    16 kg
  • (iii)
    21 kg
  • (iv)
    18 kg
  • (v)
    26 kg
Question 18
18.
The cost of 20 kg of chillies is ₹580. How much has to be paid to purchase 14 kg of chillies ?
  • (i)
    ₹399
  • (ii)
    ₹406
  • (iii)
    ₹433
  • (iv)
    ₹422
  • (v)
    ₹394
Question 19
19.
The weight of 13 rounds of copper wire is 338 kg. How many rounds of copper wire is present in 624 kg?
  • (i)
    23
  • (ii)
    24
  • (iii)
    25
  • (iv)
    21
  • (v)
    26
Question 20
20.
32 men can dig a canal in 168 days  working for 13 hr per day. How many men are required to complete the work in 104 days  working for 12 hr per day?
  • (i)
    56
  • (ii)
    57
  • (iii)
    59
  • (iv)
    53
  • (v)
    55
Question 21
21.
18 men can dig a trench in 11 days. But after working for 9 days, 6 men left. How many more days are required to complete the work?
  • (i)
    5
    days
  • (ii)
    0
    days
  • (iii)
    2
    days
  • (iv)
    3
    days
  • (v)
    4
    days
Question 22
22.
In a hostel mess there are provisions enough for 15 students for 15 days. If 10 more students join the hostel, how long will the provisions last ?
  • (i)
    10.00 days
  • (ii)
    8.00 days
  • (iii)
    11.00 days
  • (iv)
    9.00 days
  • (v)
    7.00 days
Question 23
23.
In a hostel mess, there are provisions enough for 16 students for 19 days. After 9 days, 7 students left. How many more days will the provisions last ?
  • (i)
    17.78 days
  • (ii)
    14.78 days
  • (iii)
    20.78 days
  • (iv)
    22.78 days
  • (v)
    12.78 days
Question 24
24.
A bus ticket fare for 16 km costs ₹71. How much is the fare for 18 km?
  • (i)
    ₹76.88
  • (ii)
    ₹84.88
  • (iii)
    ₹74.88
  • (iv)
    ₹82.88
  • (v)
    ₹79.88
Question 25
25.
The cost of 15 pens is ₹255 and 13 pencils is ₹65. With an amount of ₹288, 10 pencils are purchased. How many pens can be purchased with the remaining amount ?
  • (i)
    12
  • (ii)
    15
  • (iii)
    16
  • (iv)
    13
  • (v)
    14
Question 26
26.
The cost of 19 pens is ₹380 and 12 pencils is ₹72. With an amount of ₹382, 14 pens are purchased. How many pencils can be purchased with the remaining amount ?
  • (i)
    16
  • (ii)
    18
  • (iii)
    19
  • (iv)
    14
  • (v)
    17
Question 27
27.
The sales tax for ₹100 of a bill is ₹10. How much sales tax has to be paid for a bill of ₹431 ?
  • (i)
    ₹48.10
  • (ii)
    ₹40.10
  • (iii)
    ₹46.10
  • (iv)
    ₹43.10
  • (v)
    ₹38.10
Question 28
28.
A group of pilgrims have to cover 22 km to reach a shrine. They walk 11 km in 10 hr. At what speed they have to walk to cover the remaining distance in 5 hr ?
  • (i)
    1.20 kmph
  • (ii)
    3.20 kmph
  • (iii)
    0.20 kmph
  • (iv)
    4.20 kmph
  • (v)
    2.20 kmph
Question 29
29.
To stitch a shirt, 142 cm of cloth is needed. How much cloth is needed to stitch 8 shirts ?
  • (i)
    906 cm
  • (ii)
    1076 cm
  • (iii)
    1296 cm
  • (iv)
    1136 cm
  • (v)
    1406 cm
Question 30
30.
18 m of cloth is required to stitch 5 dresses. How many meters of cloth is required to stitch 19 dresses?
  • (i)
    68.40 m
  • (ii)
    63.40 m
  • (iii)
    65.40 m
  • (iv)
    71.40 m
  • (v)
    73.40 m
Question 31
31.
The cost of 6 dozen bananas is ₹210. What is the cost of 26 dozens ?
  • (i)
    ₹884
  • (ii)
    ₹932
  • (iii)
    ₹912
  • (iv)
    ₹910
  • (v)
    ₹893
Question 32
32.
20 mangoes weigh 10 kg. If 6 mangoes are needed, how many kgs have to be purchased?
  • (i)
    2.00 kg
  • (ii)
    1.00 kg
  • (iii)
    3.00 kg
  • (iv)
    4.00 kg
  • (v)
    5.00 kg
Question 33
33.
70 men or 40 women can earn ₹2800 per day. How much is earned by 16 men and 10 women in a day?
  • (i)
    ₹1170
  • (ii)
    ₹1600
  • (iii)
    ₹1480
  • (iv)
    ₹1190
  • (v)
    ₹1340
Question 34
34.
The total wage of 19 labourers for 15 days is ₹139650. What will be the total wage of 16 labourers for 13 days ?
  • (i)
    ₹115920
  • (ii)
    ₹84920
  • (iii)
    ₹76920
  • (iv)
    ₹101920
  • (v)
    ₹103920
Question 35
35.
30 artisans can make 50 idols in 20 days. How many artisans are required to make 72 idols in 32 days ?
  • (i)
    28
  • (ii)
    26
  • (iii)
    29
  • (iv)
    27
  • (v)
    25
Question 36
36.
12 workers working for 3 hr per day can dig a pit in 90 days. How many days are needed for 18 workers working 10 hr per day to dig the same pit?
  • (i)
    23 days
  • (ii)
    21 days
  • (iii)
    15 days
  • (iv)
    13 days
  • (v)
    18 days
Question 37
37.
8 cows eat 2080 kg of grass in 13 days. How much of grass has to be procured to feed 9 cows for 5 days ?
  • (i)
    912 kg
  • (ii)
    900 kg
  • (iii)
    877 kg
  • (iv)
    914 kg
  • (v)
    882 kg
Question 38
38.
Cost of 10 toys of TypeA is ₹80 and 12 toys of TypeB is ₹156. Out of a sum of ₹187, 15 toys of TypeA are purchased. If 9 toys of TypeB have to be purchased, how much extra amount is needed?
  • (i)
    ₹45
  • (ii)
    ₹50
  • (iii)
    ₹47
  • (iv)
    ₹53
  • (v)
    ₹55
Question 39
39.
2 men can make 84 baskets in 6 days. 2 women can make 60 baskets in 10 days. How many baskets are made by 5 men and 10 women in 8 days ?
  • (i)
    519
  • (ii)
    521
  • (iii)
    520
  • (iv)
    517
  • (v)
    522
Question 40
40.
To irrigate 13 acres of a field, 60000 l of water is needed. If 8 more acres are brought under cultivation, how many lts of water is needed?
  • (i)
    98123.08 l
  • (ii)
    97423.08 l
  • (iii)
    94523.08 l
  • (iv)
    96923.08 l
  • (v)
    96223.08 l
Question 41
41.
12 labourers can cultivate a field in 40 days working 3 hr per day. How many more labourers are needed to cultivate double the field in 6 days working 10 hr per day ?
  • (i)
    38
  • (ii)
    36
  • (iii)
    35
  • (iv)
    34
  • (v)
    37
Question 42
42.
19 workers working 10 hr per day are paid ₹226100 for 17 days. How much has to be paid to 12 workers working 13 hr per day for 11 days ?
  • (i)
    ₹120120
  • (ii)
    ₹108120
  • (iii)
    ₹105120
  • (iv)
    ₹132120
  • (v)
    ₹136120
Question 43
43.
The air ticket charges for 40 persons for a flight is ₹166920, inclusive of ₹273 as airport tax per person. How much has to be paid if 18 persons drop out of the trip ?
  • (i)
    ₹90006
  • (ii)
    ₹91306
  • (iii)
    ₹93406
  • (iv)
    ₹91806
Question 44
44.
The specification on a printer says that it prints 1400 pages in 20 min. If 5600 pages have to be printed, how long will it take ?
  • (i)
    83 min
  • (ii)
    80 min
  • (iii)
    77 min
  • (iv)
    75 min
  • (v)
    85 min
Question 45
45.
13 gm of gold costs ₹29900. What is the cost of 35 gm ?
  • (i)
    ₹78800
  • (ii)
    ₹82200
  • (iii)
    ₹80500
  • (iv)
    ₹81000
  • (v)
    ₹78700
Question 46
46.
A banker gave foreign exchange of $19 for ₹817. How many dollars will the customer get for ₹1290 ?
  • (i)
    $25
  • (ii)
    $35
  • (iii)
    $33
  • (iv)
    $30
  • (v)
    $27
Question 47
47.
19 workers take 18 days to build a room. After working for 10 days, 12 workers left. In how many more days is the room built ?
  • (i)
    24.71 days
  • (ii)
    26.71 days
  • (iii)
    18.71 days
  • (iv)
    16.71 days
  • (v)
    21.71 days
Question 48
48.
    • A can do
    • 1

      6
    • of a particular work in
    • 13 days
    • .
    • B can do
    • 1

      14
    • of the same work in
    • 9 days
    • .
    • C can do
    • 1

      7
    • of the same work in
    • 15 days
    • .
    • If A, B and C work together, in how many days is the work completed ?
  • (i)
    33
    3

    124
    days
  • (ii)
    32
    1

    2
    days
  • (iii)
    33
    1

    124
    days
  • (iv)
    33
    69

    122
    days
  • (v)
    33
    5

    124
    days
Question 49
49.
A journey consists of three legs. First 182 km are travelled at a speed of 140 kmph. Next 30 km are travelled at a speed of 100 kmph. Last 24 km are travelled at a speed of 60 kmph. Find the total time taken to complete the journey.
  • (i)
    1
    2

    3
    hr
  • (ii)
    1
    4

    5
    hr
  • (iii)
    2
    hr
  • (iv)
    2
    1

    2
    hr
  • (v)
    2
    1

    5
    hr
Question 50
50.
In an eating contest, the eating capacities of A, B and C are 9 gm/sec, 7 gm/sec and 8 gm/sec respectively. If the amount of food to be eaten is 21.6 kg, in how much time is it consumed if all three participants start eating together ?
  • (i)
    14
    min
  • (ii)
    17
    min
  • (iii)
    13
    min
  • (iv)
    15
    min
  • (v)
    16
    min
Question 51
51.
In a certain exam, for every correct answer, 4 marks are added. For every wrong answer 3 marks are subtracted. A student attempted 45 questions and secured 103 marks. How many answers are correct and how many are wrong?
  • (i)
    35 correct and 10 wrong
  • (ii)
    34 correct and 11 wrong
  • (iii)
    32 correct and 13 wrong
  • (iv)
    33 correct and 12 wrong
  • (v)
    36 correct and 9 wrong
Question 52
52.
    • A production line consists of three stages to be completed serially.
    • Stage1 work can be done by
    • 12
    • workers in
    • 8 days
    • .
    • Stage2 work can be done by
    • 11
    • workers in
    • 6 days
    • .
    • Stage3 work can be done by
    • 9
    • workers in
    • 13 days
    • .
    • If
    • 12
    • ,
    • 11
    • and
    • 5
    • workers are hired to do
    • Stage1, Stage2 and Stage3 works respectively,
    • in how many days is the work completed ?
  • (i)
    37
    2

    3
    days
  • (ii)
    37
    4

    5
    days
  • (iii)
    37
    2

    7
    days
  • (iv)
    37
    days
  • (v)
    37
    2

    5
    days
Question 53
53.
    • The slab rates of a city's water department are as follows
    • Low Val (kl)
      -
      High Val (kl)
      Rate Rs/kl
      0
      -
      30
      13
      30
      -
      50
      18
      50
      -
      70
      23
      70
      -
      remaining
      28
    • How much amount has to be paid if the consumption is
    • 30 kl
    • .
  • (i)
    ₹390
  • (ii)
    ₹396
  • (iii)
    ₹373
  • (iv)
    ₹418
  • (v)
    ₹374
Question 54
54.
    • The slab rates of a city's water department are as follows
    • Low Val (kl)
      -
      High Val (kl)
      Rate Rs/kl
      0
      -
      30
      12
      30
      -
      70
      17
      70
      -
      90
      22
      90
      -
      remaining
      27
    • How much amount has to be paid if the consumption is
    • 55 kl
    • .
  • (i)
    ₹807
  • (ii)
    ₹785
  • (iii)
    ₹781
  • (iv)
    ₹772
  • (v)
    ₹799
Question 55
55.
    • The slab rates of a city's water department are as follows
    • Low Val (kl)
      -
      High Val (kl)
      Rate Rs/kl
      0
      -
      20
      19
      20
      -
      50
      24
      50
      -
      90
      29
      90
      -
      remaining
      34
    • How much amount has to be paid if the consumption is
    • 88 kl
    • .
  • (i)
    ₹2452
  • (ii)
    ₹2202
  • (iii)
    ₹1922
  • (iv)
    ₹2372
  • (v)
    ₹2132
Question 56
56.
    • The slab rates of a city's water department are as follows
    • Low Val (kl)
      -
      High Val (kl)
      Rate Rs/kl
      0
      -
      20
      16
      20
      -
      30
      21
      30
      -
      60
      26
      60
      -
      remaining
      31
    • How much amount has to be paid if the consumption is
    • 84 kl
    • .
  • (i)
    ₹1784
  • (ii)
    ₹2204
  • (iii)
    ₹2234
  • (iv)
    ₹1974
  • (v)
    ₹2054
    Assignment Key

  •  1) (i)
  •  2) (v)
  •  3) (ii)
  •  4) (iii)
  •  5) (iv)
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  •  7) (ii)
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  •  12) (v)
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  •  16) (v)
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  •  21) (iv)
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  •  24) (v)
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  •  31) (iv)
  •  32) (iii)
  •  33) (v)
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  •  36) (v)
  •  37) (ii)
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  •  39) (iii)
  •  40) (iv)
  •  41) (ii)
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  •  43) (iv)
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  •  47) (v)
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  •  49) (iii)
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  •  51) (ii)
  •  52) (v)
  •  53) (i)
  •  54) (ii)
  •  55) (ii)
  •  56) (v)