EduSahara™ Assignment
Name : Unitary Method Problems
Chapter : Unitary Method
Grade : ICSE Grade VIII
License : Non Commercial Use
Question 1
1.
If 11 dolls cost ₹66, how much will 33 dolls cost?
  • (i)
    ₹191
  • (ii)
    ₹203
  • (iii)
    ₹198
  • (iv)
    ₹211
  • (v)
    ₹180
Question 2
2.
If 11 dosas cost ₹99, how many dosas can be purchased with ₹324?
  • (i)
    36
  • (ii)
    38
  • (iii)
    33
  • (iv)
    37
  • (v)
    35
Question 3
3.
If 8 l of groundnut oil costs ₹80, how much will 35 l cost?
  • (i)
    ₹354
  • (ii)
    ₹336
  • (iii)
    ₹327
  • (iv)
    ₹368
  • (v)
    ₹350
Question 4
4.
If 7 l of cooking oil costs ₹91, how much of cooking oil costs ₹390?
  • (i)
    33 l
  • (ii)
    35 l
  • (iii)
    25 l
  • (iv)
    30 l
  • (v)
    27 l
Question 5
5.
If 11 men can make 33 chairs in a day, how many chairs are made by 19 men in a day?
  • (i)
    55
  • (ii)
    58
  • (iii)
    56
  • (iv)
    60
  • (v)
    57
Question 6
6.
If 19 men can make 114 idols in a day, how many men are needed to make 150 idols in a day?
  • (i)
    22
  • (ii)
    26
  • (iii)
    28
  • (iv)
    24
  • (v)
    25
Question 7
7.
If Krishna can read 340 pages in 20 hr, how many pages can he read in 10 hr?
  • (i)
    172
  • (ii)
    171
  • (iii)
    168
  • (iv)
    170
  • (v)
    169
Question 8
8.
If Laxman can read 400 pages in 20 hr, he can read 320 pages in how many hours?
  • (i)
    13 hr
  • (ii)
    11 hr
  • (iii)
    19 hr
  • (iv)
    21 hr
  • (v)
    16 hr
Question 9
9.
If Arjun can read 162 pages in a 297 pages book in 6 hr, how much more time will it take to complete the book?
  • (i)
    7 hr
  • (ii)
    5 hr
  • (iii)
    3 hr
  • (iv)
    6 hr
  • (v)
    4 hr
Question 10
10.
If Shyam can make 216 pastries in 12 min, in how much time can he complete an order of 540 pastries ?
  • (i)
    27 min
  • (ii)
    25 min
  • (iii)
    30 min
  • (iv)
    33 min
  • (v)
    35 min
Question 11
11.
If 66 men can do a piece of work in 104 days, how many men can do the same work in 88 days?
  • (i)
    78
  • (ii)
    77
  • (iii)
    75
  • (iv)
    81
  • (v)
    79
Question 12
12.
If 72 men can do a piece of work in 98 days, 126 men can do the same work in how many days?
  • (i)
    61 days
  • (ii)
    56 days
  • (iii)
    59 days
  • (iv)
    51 days
  • (v)
    53 days
Question 13
13.
    • If
    • 13
    • men can build
    • 1

      5
    • of a wall in
    • 37 days
    • ,
    • in how much more time is the wall completely built ?
  • (i)
    141 days
  • (ii)
    148 days
  • (iii)
    124 days
  • (iv)
    163 days
  • (v)
    161 days
Question 14
14.
A vehicle can cover certain distance in 156 min, running at a speed of 63 kmph. At what speed must the vehicle run to cover the same distance in 91 min?
  • (i)
    115 kmph
  • (ii)
    104 kmph
  • (iii)
    84 kmph
  • (iv)
    108 kmph
  • (v)
    136 kmph
Question 15
15.
A vehicle can cover certain distance in 105 min, running at a speed of 84 kmph. In how many minutes, the vehicle covers the same distance running at a speed of 42 kmph?
  • (i)
    196 min
  • (ii)
    232 min
  • (iii)
    195 min
  • (iv)
    212 min
  • (v)
    210 min
Question 16
16.
A person has to travel from one town to another town which is at a distance of 527 km. He covers 279 km in 9 hr. In how much more time will he reach his destination?
  • (i)
    6 hr
  • (ii)
    8 hr
  • (iii)
    9 hr
  • (iv)
    7 hr
  • (v)
    10 hr
Question 17
17.
The cost of 23 kg of radish is ₹552. How many kgs of radish can be purchased with ₹288 ?
  • (i)
    15 kg
  • (ii)
    17 kg
  • (iii)
    12 kg
  • (iv)
    7 kg
  • (v)
    9 kg
Question 18
18.
The cost of 20 kg of beans is ₹440. How much has to be paid to purchase 19 kg of beans ?
  • (i)
    ₹410
  • (ii)
    ₹435
  • (iii)
    ₹418
  • (iv)
    ₹432
  • (v)
    ₹393
Question 19
19.
The weight of 18 rounds of copper wire is 486 kg. How many rounds of copper wire is present in 513 kg?
  • (i)
    16
  • (ii)
    19
  • (iii)
    22
  • (iv)
    18
  • (v)
    20
Question 20
20.
135 men can dig a canal in 21 days  working for 12 hr per day. How many men are required to complete the work in 108 days  working for 3 hr per day?
  • (i)
    107
  • (ii)
    103
  • (iii)
    106
  • (iv)
    104
  • (v)
    105
Question 21
21.
17 men can dig a trench in 20 days. But after working for 16 days, 12 men left. How many more days are required to complete the work?
  • (i)
    14
    days
  • (ii)
    13
    1

    5
    days
  • (iii)
    13
    3

    7
    days
  • (iv)
    13
    3

    5
    days
Question 22
22.
In a hostel mess there are provisions enough for 12 students for 11 days. If 5 more students join the hostel, how long will the provisions last ?
  • (i)
    8.76 days
  • (ii)
    5.76 days
  • (iii)
    7.76 days
  • (iv)
    9.76 days
  • (v)
    6.76 days
Question 23
23.
In a hostel mess, there are provisions enough for 15 students for 17 days. After 13 days, 6 students left. How many more days will the provisions last ?
  • (i)
    6.67 days
  • (ii)
    5.67 days
  • (iii)
    4.67 days
  • (iv)
    8.67 days
  • (v)
    7.67 days
Question 24
24.
A bus ticket fare for 16 km costs ₹99. How much is the fare for 20 km?
  • (i)
    ₹123.75
  • (ii)
    ₹135.75
  • (iii)
    ₹111.75
  • (iv)
    ₹97.75
  • (v)
    ₹140.75
Question 25
25.
The cost of 12 pens is ₹192 and 14 pencils is ₹140. With an amount of ₹430, 19 pencils are purchased. How many pens can be purchased with the remaining amount ?
  • (i)
    14
  • (ii)
    16
  • (iii)
    15
  • (iv)
    13
  • (v)
    17
Question 26
26.
The cost of 12 pens is ₹204 and 20 pencils is ₹140. With an amount of ₹278, 11 pens are purchased. How many pencils can be purchased with the remaining amount ?
  • (i)
    12
  • (ii)
    13
  • (iii)
    14
  • (iv)
    11
  • (v)
    15
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 ₹433 ?
  • (i)
    ₹48.30
  • (ii)
    ₹46.30
  • (iii)
    ₹43.30
  • (iv)
    ₹38.30
  • (v)
    ₹40.30
Question 28
28.
A group of pilgrims have to cover 18 km to reach a shrine. They walk 10 km in 15 hr. At what speed they have to walk to cover the remaining distance in 7 hr ?
  • (i)
    3.14 kmph
  • (ii)
    0.14 kmph
  • (iii)
    9.14 kmph
  • (iv)
    1.14 kmph
  • (v)
    2.14 kmph
Question 29
29.
To stitch a shirt, 138 cm of cloth is needed. How much cloth is needed to stitch 10 shirts ?
  • (i)
    1240 cm
  • (ii)
    1630 cm
  • (iii)
    1380 cm
  • (iv)
    1260 cm
  • (v)
    1400 cm
Question 30
30.
11 m of cloth is required to stitch 9 dresses. How many meters of cloth is required to stitch 22 dresses?
  • (i)
    23.89 m
  • (ii)
    21.89 m
  • (iii)
    31.89 m
  • (iv)
    29.89 m
  • (v)
    26.89 m
Question 31
31.
The cost of 6 dozen bananas is ₹234. What is the cost of 16 dozens ?
  • (i)
    ₹620
  • (ii)
    ₹608
  • (iii)
    ₹624
  • (iv)
    ₹646
  • (v)
    ₹631
Question 32
32.
12 mangoes weigh 10 kg. If 8 mangoes are needed, how many kgs have to be purchased?
  • (i)
    7.67 kg
  • (ii)
    6.67 kg
  • (iii)
    8.67 kg
  • (iv)
    4.67 kg
  • (v)
    5.67 kg
Question 33
33.
80 men or 60 women can earn ₹4800 per day. How much is earned by 11 men and 19 women in a day?
  • (i)
    ₹2000
  • (ii)
    ₹2110
  • (iii)
    ₹2230
  • (iv)
    ₹2180
  • (v)
    ₹2340
Question 34
34.
The total wage of 15 labourers for 5 days is ₹34500. What will be the total wage of 14 labourers for 9 days ?
  • (i)
    ₹57960
  • (ii)
    ₹55360
  • (iii)
    ₹57260
  • (iv)
    ₹58260
  • (v)
    ₹60360
Question 35
35.
36 artisans can make 12 idols in 15 days. How many artisans are required to make 70 idols in 50 days ?
  • (i)
    63
  • (ii)
    62
  • (iii)
    65
  • (iv)
    61
  • (v)
    64
Question 36
36.
24 workers working for 10 hr per day can dig a pit in 63 days. How many days are needed for 42 workers working 9 hr per day to dig the same pit?
  • (i)
    37 days
  • (ii)
    45 days
  • (iii)
    40 days
  • (iv)
    35 days
  • (v)
    43 days
Question 37
37.
11 cows eat 2926 kg of grass in 14 days. How much of grass has to be procured to feed 10 cows for 12 days ?
  • (i)
    2130 kg
  • (ii)
    2280 kg
  • (iii)
    2440 kg
  • (iv)
    2150 kg
  • (v)
    2460 kg
Question 38
38.
Cost of 9 toys of TypeA is ₹63 and 19 toys of TypeB is ₹323. Out of a sum of ₹216, 8 toys of TypeA are purchased. If 10 toys of TypeB have to be purchased, how much extra amount is needed?
  • (i)
    ₹5
  • (ii)
    ₹15
  • (iii)
    ₹13
  • (iv)
    ₹7
  • (v)
    ₹10
Question 39
39.
10 men can make 300 baskets in 5 days. 4 women can make 140 baskets in 7 days. How many baskets are made by 3 men and 7 women in 7 days ?
  • (i)
    374
  • (ii)
    372
  • (iii)
    370
  • (iv)
    371
  • (v)
    369
Question 40
40.
To irrigate 14 acres of a field, 100000 l of water is needed. If 8 more acres are brought under cultivation, how many lts of water is needed?
  • (i)
    170142.86 l
  • (ii)
    142142.86 l
  • (iii)
    157142.86 l
  • (iv)
    145142.86 l
  • (v)
    183142.86 l
Question 41
41.
54 labourers can cultivate a field in 56 days working 2 hr per day. How many more labourers are needed to cultivate double the field in 18 days working 7 hr per day ?
  • (i)
    42
  • (ii)
    43
  • (iii)
    41
  • (iv)
    44
  • (v)
    39
Question 42
42.
13 workers working 14 hr per day are paid ₹60060 for 11 days. How much has to be paid to 10 workers working 11 hr per day for 17 days ?
  • (i)
    ₹56100
  • (ii)
    ₹56700
  • (iii)
    ₹53600
  • (iv)
    ₹55400
  • (v)
    ₹58800
Question 43
43.
The air ticket charges for 36 persons for a flight is ₹169164, inclusive of ₹399 as airport tax per person. How much has to be paid if 11 persons drop out of the trip ?
  • (i)
    ₹101475
  • (ii)
    ₹114475
  • (iii)
    ₹117475
  • (iv)
    ₹142475
  • (v)
    ₹129475
Question 44
44.
The specification on a printer says that it prints 1200 pages in 20 min. If 5700 pages have to be printed, how long will it take ?
  • (i)
    90 min
  • (ii)
    92 min
  • (iii)
    100 min
  • (iv)
    98 min
  • (v)
    95 min
Question 45
45.
11 gm of gold costs ₹24200. What is the cost of 38 gm ?
  • (i)
    ₹83600
  • (ii)
    ₹80800
  • (iii)
    ₹85000
  • (iv)
    ₹85100
  • (v)
    ₹82300
Question 46
46.
A banker gave foreign exchange of $14 for ₹462. How many dollars will the customer get for ₹792 ?
  • (i)
    $27
  • (ii)
    $29
  • (iii)
    $19
  • (iv)
    $24
  • (v)
    $21
Question 47
47.
13 workers take 19 days to build a room. After working for 9 days, 8 workers left. In how many more days is the room built ?
  • (i)
    23.00 days
  • (ii)
    21.00 days
  • (iii)
    26.00 days
  • (iv)
    29.00 days
  • (v)
    31.00 days
Question 48
48.
    • A can do
    • 1

      7
    • of a particular work in
    • 13 days
    • .
    • B can do
    • 1

      2
    • of the same work in
    • 11 days
    • .
    • C can do
    • 1

      15
    • of the same work in
    • 12 days
    • .
    • If A, B and C work together, in how many days is the work completed ?
  • (i)
    16
    1444

    11171
    days
  • (ii)
    16
    164

    1241
    days
  • (iii)
    16
    1446

    11171
    days
  • (iv)
    16
    1442

    11171
    days
  • (v)
    16
    1412

    11173
    days
Question 49
49.
A journey consists of three legs. First 70 km are travelled at a speed of 50 kmph. Next 44 km are travelled at a speed of 110 kmph. Last 24 km are travelled at a speed of 120 kmph. Find the total time taken to complete the journey.
  • (i)
    2
    hr
  • (ii)
    2
    1

    5
    hr
  • (iii)
    1
    2

    3
    hr
  • (iv)
    2
    1

    2
    hr
  • (v)
    1
    4

    5
    hr
Question 50
50.
In an eating contest, the eating capacities of A, B and C are 8 gm/sec, 7 gm/sec and 5 gm/sec respectively. If the amount of food to be eaten is 10.8 kg, in how much time is it consumed if all three participants start eating together ?
  • (i)
    11
    min
  • (ii)
    8
    min
  • (iii)
    9
    min
  • (iv)
    6
    min
  • (v)
    10
    min
Question 51
51.
In a certain exam, for every correct answer, 10 marks are added. For every wrong answer 6 marks are subtracted. A student attempted 55 questions and secured 326 marks. How many answers are correct and how many are wrong?
  • (i)
    41 correct and 14 wrong
  • (ii)
    39 correct and 16 wrong
  • (iii)
    43 correct and 12 wrong
  • (iv)
    40 correct and 15 wrong
  • (v)
    42 correct and 13 wrong
Question 52
52.
    • A production line consists of three stages to be completed serially.
    • Stage1 work can be done by
    • 14
    • workers in
    • 12 days
    • .
    • Stage2 work can be done by
    • 8
    • workers in
    • 9 days
    • .
    • Stage3 work can be done by
    • 11
    • workers in
    • 6 days
    • .
    • If
    • 7
    • ,
    • 9
    • and
    • 14
    • workers are hired to do
    • Stage1, Stage2 and Stage3 works respectively,
    • in how many days is the work completed ?
  • (i)
    36
    5

    7
    days
  • (ii)
    36
    5

    9
    days
  • (iii)
    36
    3

    7
    days
  • (iv)
    37
    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
      -
      70
      17
      70
      -
      80
      22
      80
      -
      90
      27
      90
      -
      remaining
      32
    • How much amount has to be paid if the consumption is
    • 42 kl
    • .
  • (i)
    ₹701
  • (ii)
    ₹712
  • (iii)
    ₹730
  • (iv)
    ₹718
  • (v)
    ₹714
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
      -
      50
      12
      50
      -
      80
      17
      80
      -
      90
      22
      90
      -
      remaining
      27
    • How much amount has to be paid if the consumption is
    • 73 kl
    • .
  • (i)
    ₹973
  • (ii)
    ₹991
  • (iii)
    ₹996
  • (iv)
    ₹1018
  • (v)
    ₹977
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
      -
      40
      20
      40
      -
      70
      25
      70
      -
      90
      30
      90
      -
      remaining
      35
    • How much amount has to be paid if the consumption is
    • 73 kl
    • .
  • (i)
    ₹1470
  • (ii)
    ₹1640
  • (iii)
    ₹1720
  • (iv)
    ₹1360
  • (v)
    ₹1790
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
      18
      20
      -
      70
      23
      70
      -
      80
      28
      80
      -
      remaining
      33
    • How much amount has to be paid if the consumption is
    • 94 kl
    • .
  • (i)
    ₹2312
  • (ii)
    ₹2202
  • (iii)
    ₹2252
  • (iv)
    ₹2422
  • (v)
    ₹2032
    Assignment Key

  •  1) (iii)
  •  2) (i)
  •  3) (v)
  •  4) (iv)
  •  5) (v)
  •  6) (v)
  •  7) (iv)
  •  8) (v)
  •  9) (ii)
  •  10) (iii)
  •  11) (i)
  •  12) (ii)
  •  13) (ii)
  •  14) (iv)
  •  15) (v)
  •  16) (ii)
  •  17) (iii)
  •  18) (iii)
  •  19) (ii)
  •  20) (v)
  •  21) (iv)
  •  22) (iii)
  •  23) (i)
  •  24) (i)
  •  25) (iii)
  •  26) (ii)
  •  27) (iii)
  •  28) (iv)
  •  29) (iii)
  •  30) (v)
  •  31) (iii)
  •  32) (ii)
  •  33) (iv)
  •  34) (i)
  •  35) (i)
  •  36) (iii)
  •  37) (ii)
  •  38) (v)
  •  39) (iv)
  •  40) (iii)
  •  41) (i)
  •  42) (i)
  •  43) (iii)
  •  44) (v)
  •  45) (i)
  •  46) (iv)
  •  47) (iii)
  •  48) (i)
  •  49) (i)
  •  50) (iii)
  •  51) (i)
  •  52) (i)
  •  53) (v)
  •  54) (ii)
  •  55) (ii)
  •  56) (iii)