EduSahara™ Assignment
Name : Unitary Method Problems
Chapter : Unitary Method
Grade : ICSE Grade VIII
License : Non Commercial Use
Question 1
1.
If 15 dolls cost ₹135, how much will 30 dolls cost?
  • (i)
    ₹284
  • (ii)
    ₹273
  • (iii)
    ₹255
  • (iv)
    ₹270
  • (v)
    ₹253
Question 2
2.
If 6 brushes cost ₹36, how many brushes can be purchased with ₹240?
  • (i)
    43
  • (ii)
    39
  • (iii)
    38
  • (iv)
    41
  • (v)
    40
Question 3
3.
If 6 l of groundnut oil costs ₹114, how much will 28 l cost?
  • (i)
    ₹532
  • (ii)
    ₹547
  • (iii)
    ₹550
  • (iv)
    ₹519
  • (v)
    ₹528
Question 4
4.
If 14 l of milk costs ₹266, how much of milk costs ₹760?
  • (i)
    43 l
  • (ii)
    35 l
  • (iii)
    45 l
  • (iv)
    37 l
  • (v)
    40 l
Question 5
5.
If 16 men can make 112 toy cars in a day, how many toy cars are made by 19 men in a day?
  • (i)
    133
  • (ii)
    132
  • (iii)
    130
  • (iv)
    136
  • (v)
    134
Question 6
6.
If 16 men can make 64 birthday cakes in a day, how many men are needed to make 68 birthday cakes in a day?
  • (i)
    17
  • (ii)
    19
  • (iii)
    16
  • (iv)
    18
  • (v)
    14
Question 7
7.
If Mahesh can read 140 pages in 14 hr, how many pages can he read in 15 hr?
  • (i)
    151
  • (ii)
    150
  • (iii)
    149
  • (iv)
    152
  • (v)
    148
Question 8
8.
If Rajesh can read 130 pages in 13 hr, he can read 140 pages in how many hours?
  • (i)
    14 hr
  • (ii)
    17 hr
  • (iii)
    19 hr
  • (iv)
    9 hr
  • (v)
    11 hr
Question 9
9.
If Shyam can read 78 pages in a 156 pages book in 6 hr, how much more time will it take to complete the book?
  • (i)
    6 hr
  • (ii)
    4 hr
  • (iii)
    7 hr
  • (iv)
    8 hr
  • (v)
    5 hr
Question 10
10.
If Kumar can make 144 pastries in 12 min, in how much time can he complete an order of 468 pastries ?
  • (i)
    39 min
  • (ii)
    44 min
  • (iii)
    36 min
  • (iv)
    34 min
  • (v)
    42 min
Question 11
11.
If 50 men can do a piece of work in 88 days, how many men can do the same work in 55 days?
  • (i)
    78
  • (ii)
    80
  • (iii)
    81
  • (iv)
    82
  • (v)
    79
Question 12
12.
If 91 men can do a piece of work in 99 days, 63 men can do the same work in how many days?
  • (i)
    137 days
  • (ii)
    143 days
  • (iii)
    147 days
  • (iv)
    166 days
  • (v)
    121 days
Question 13
13.
    • If
    • 10
    • men can build
    • 1

      8
    • of a wall in
    • 45 days
    • ,
    • in how much more time is the wall completely built ?
  • (i)
    303 days
  • (ii)
    339 days
  • (iii)
    322 days
  • (iv)
    289 days
  • (v)
    315 days
Question 14
14.
A vehicle can cover certain distance in 91 min, running at a speed of 50 kmph. At what speed must the vehicle run to cover the same distance in 35 min?
  • (i)
    153 kmph
  • (ii)
    126 kmph
  • (iii)
    102 kmph
  • (iv)
    135 kmph
  • (v)
    130 kmph
Question 15
15.
A vehicle can cover certain distance in 165 min, running at a speed of 182 kmph. In how many minutes, the vehicle covers the same distance running at a speed of 143 kmph?
  • (i)
    224 min
  • (ii)
    210 min
  • (iii)
    204 min
  • (iv)
    185 min
  • (v)
    218 min
Question 16
16.
A person has to travel from one town to another town which is at a distance of 570 km. He covers 190 km in 5 hr. In how much more time will he reach his destination?
  • (i)
    13 hr
  • (ii)
    7 hr
  • (iii)
    5 hr
  • (iv)
    15 hr
  • (v)
    10 hr
Question 17
17.
The cost of 16 kg of potatoes is ₹400. How many kgs of potatoes can be purchased with ₹525 ?
  • (i)
    18 kg
  • (ii)
    21 kg
  • (iii)
    16 kg
  • (iv)
    24 kg
  • (v)
    26 kg
Question 18
18.
The cost of 15 kg of tomatoes is ₹405. How much has to be paid to purchase 20 kg of tomatoes ?
  • (i)
    ₹544
  • (ii)
    ₹522
  • (iii)
    ₹563
  • (iv)
    ₹518
  • (v)
    ₹540
Question 19
19.
The weight of 10 rounds of copper wire is 200 kg. How many rounds of copper wire is present in 460 kg?
  • (i)
    24
  • (ii)
    20
  • (iii)
    23
  • (iv)
    22
  • (v)
    26
Question 20
20.
45 men can dig a canal in 80 days  working for 15 hr per day. How many men are required to complete the work in 75 days  working for 8 hr per day?
  • (i)
    93
  • (ii)
    89
  • (iii)
    91
  • (iv)
    87
  • (v)
    90
Question 21
21.
20 men can dig a trench in 15 days. But after working for 13 days, 12 men left. How many more days are required to complete the work?
  • (i)
    4
    days
  • (ii)
    2
    days
  • (iii)
    8
    days
  • (iv)
    5
    days
  • (v)
    6
    days
Question 22
22.
In a hostel mess there are provisions enough for 18 students for 11 days. If 15 more students join the hostel, how long will the provisions last ?
  • (i)
    6.00 days
  • (ii)
    4.00 days
  • (iii)
    8.00 days
  • (iv)
    5.00 days
  • (v)
    7.00 days
Question 23
23.
In a hostel mess, there are provisions enough for 20 students for 13 days. After 6 days, 9 students left. How many more days will the provisions last ?
  • (i)
    17.73 days
  • (ii)
    9.73 days
  • (iii)
    15.73 days
  • (iv)
    12.73 days
  • (v)
    7.73 days
Question 24
24.
A bus ticket fare for 15 km costs ₹81. How much is the fare for 13 km?
  • (i)
    ₹70.20
  • (ii)
    ₹65.20
  • (iii)
    ₹67.20
  • (iv)
    ₹73.20
  • (v)
    ₹75.20
Question 25
25.
The cost of 15 pens is ₹255 and 13 pencils is ₹65. With an amount of ₹260, 18 pencils are purchased. How many pens can be purchased with the remaining amount ?
  • (i)
    10
  • (ii)
    9
  • (iii)
    12
  • (iv)
    7
  • (v)
    11
Question 26
26.
The cost of 18 pens is ₹306 and 16 pencils is ₹96. With an amount of ₹294, 12 pens are purchased. How many pencils can be purchased with the remaining amount ?
  • (i)
    15
  • (ii)
    12
  • (iii)
    14
  • (iv)
    16
  • (v)
    17
Question 27
27.
The sales tax for ₹100 of a bill is ₹18. How much sales tax has to be paid for a bill of ₹333 ?
  • (i)
    ₹59.94
  • (ii)
    ₹62.94
  • (iii)
    ₹54.94
  • (iv)
    ₹64.94
  • (v)
    ₹56.94
Question 28
28.
A group of pilgrims have to cover 20 km to reach a shrine. They walk 12 km in 20 hr. At what speed they have to walk to cover the remaining distance in 12 hr ?
  • (i)
    2.67 kmph
  • (ii)
    8.67 kmph
  • (iii)
    7.67 kmph
  • (iv)
    1.67 kmph
  • (v)
    0.67 kmph
Question 29
29.
To stitch a shirt, 140 cm of cloth is needed. How much cloth is needed to stitch 8 shirts ?
  • (i)
    960 cm
  • (ii)
    1270 cm
  • (iii)
    1280 cm
  • (iv)
    940 cm
  • (v)
    1120 cm
Question 30
30.
12 m of cloth is required to stitch 6 dresses. How many meters of cloth is required to stitch 24 dresses?
  • (i)
    53.00 m
  • (ii)
    45.00 m
  • (iii)
    51.00 m
  • (iv)
    43.00 m
  • (v)
    48.00 m
Question 31
31.
The cost of 8 dozen bananas is ₹312. What is the cost of 21 dozens ?
  • (i)
    ₹795
  • (ii)
    ₹832
  • (iii)
    ₹815
  • (iv)
    ₹819
Question 32
32.
16 mangoes weigh 6 kg. If 6 mangoes are needed, how many kgs have to be purchased?
  • (i)
    3.25 kg
  • (ii)
    4.25 kg
  • (iii)
    1.25 kg
  • (iv)
    2.25 kg
  • (v)
    0.25 kg
Question 33
33.
24 men or 32 women can earn ₹960 per day. How much is earned by 20 men and 15 women in a day?
  • (i)
    ₹1250
  • (ii)
    ₹1390
  • (iii)
    ₹1080
  • (iv)
    ₹1400
  • (v)
    ₹1070
Question 34
34.
The total wage of 17 labourers for 12 days is ₹73440. What will be the total wage of 18 labourers for 5 days ?
  • (i)
    ₹33900
  • (ii)
    ₹34200
  • (iii)
    ₹30600
  • (iv)
    ₹30800
  • (v)
    ₹32400
Question 35
35.
28 artisans can make 35 idols in 40 days. How many artisans are required to make 90 idols in 80 days ?
  • (i)
    38
  • (ii)
    37
  • (iii)
    35
  • (iv)
    36
  • (v)
    34
Question 36
36.
18 workers working for 7 hr per day can dig a pit in 45 days. How many days are needed for 27 workers working 5 hr per day to dig the same pit?
  • (i)
    37 days
  • (ii)
    39 days
  • (iii)
    45 days
  • (iv)
    42 days
  • (v)
    47 days
Question 37
37.
15 cows eat 1050 kg of grass in 5 days. How much of grass has to be procured to feed 8 cows for 20 days ?
  • (i)
    2080 kg
  • (ii)
    2360 kg
  • (iii)
    2240 kg
  • (iv)
    1990 kg
  • (v)
    2480 kg
Question 38
38.
Cost of 7 toys of TypeA is ₹49 and 5 toys of TypeB is ₹70. Out of a sum of ₹295, 20 toys of TypeA are purchased. If 13 toys of TypeB have to be purchased, how much extra amount is needed?
  • (i)
    ₹22
  • (ii)
    ₹30
  • (iii)
    ₹27
  • (iv)
    ₹24
  • (v)
    ₹32
Question 39
39.
5 men can make 160 baskets in 8 days. 15 women can make 180 baskets in 6 days. How many baskets are made by 3 men and 5 women in 5 days ?
  • (i)
    111
  • (ii)
    113
  • (iii)
    109
  • (iv)
    110
  • (v)
    108
Question 40
40.
To irrigate 15 acres of a field, 60000 l of water is needed. If 5 more acres are brought under cultivation, how many lts of water is needed?
  • (i)
    78500.00 l
  • (ii)
    78800.00 l
  • (iii)
    80000.00 l
  • (iv)
    81300.00 l
  • (v)
    81800.00 l
Question 41
41.
12 labourers can cultivate a field in 90 days working 8 hr per day. How many more labourers are needed to cultivate double the field in 16 days working 10 hr per day ?
  • (i)
    99
  • (ii)
    96
  • (iii)
    94
  • (iv)
    97
  • (v)
    95
Question 42
42.
17 workers working 10 hr per day are paid ₹226100 for 19 days. How much has to be paid to 10 workers working 7 hr per day for 12 days ?
  • (i)
    ₹59400
  • (ii)
    ₹57200
  • (iii)
    ₹56000
  • (iv)
    ₹61300
  • (v)
    ₹58800
Question 43
43.
The air ticket charges for 30 persons for a flight is ₹201810, inclusive of ₹227 as airport tax per person. How much has to be paid if 14 persons drop out of the trip ?
  • (i)
    ₹119632
  • (ii)
    ₹114632
  • (iii)
    ₹82632
  • (iv)
    ₹90632
  • (v)
    ₹107632
Question 44
44.
The specification on a printer says that it prints 1000 pages in 20 min. If 4250 pages have to be printed, how long will it take ?
  • (i)
    90 min
  • (ii)
    88 min
  • (iii)
    82 min
  • (iv)
    85 min
  • (v)
    80 min
Question 45
45.
19 gm of gold costs ₹38000. What is the cost of 27 gm ?
  • (i)
    ₹53800
  • (ii)
    ₹56600
  • (iii)
    ₹52500
  • (iv)
    ₹55400
  • (v)
    ₹54000
Question 46
46.
A banker gave foreign exchange of $14 for ₹798. How many dollars will the customer get for ₹2223 ?
  • (i)
    $42
  • (ii)
    $44
  • (iii)
    $39
  • (iv)
    $36
  • (v)
    $34
Question 47
47.
13 workers take 11 days to build a room. After working for 5 days, 7 workers left. In how many more days is the room built ?
  • (i)
    10.00 days
  • (ii)
    8.00 days
  • (iii)
    16.00 days
  • (iv)
    18.00 days
  • (v)
    13.00 days
Question 48
48.
    • A can do
    • 1

      14
    • of a particular work in
    • 7 days
    • .
    • B can do
    • 1

      4
    • of the same work in
    • 12 days
    • .
    • C can do
    • 1

      5
    • of the same work in
    • 8 days
    • .
    • If A, B and C work together, in how many days is the work completed ?
  • (i)
    17
    523

    661
    days
  • (ii)
    17
    197

    219
    days
  • (iii)
    17
    555

    659
    days
  • (iv)
    17
    559

    659
    days
  • (v)
    17
    557

    659
    days
Question 49
49.
A journey consists of three legs. First 182 km are travelled at a speed of 130 kmph. Next 27 km are travelled at a speed of 90 kmph. Last 60 km are travelled at a speed of 150 kmph. Find the total time taken to complete the journey.
  • (i)
    2
    5

    8
    hr
  • (ii)
    1
    9

    10
    hr
  • (iii)
    2
    1

    10
    hr
  • (iv)
    1
    3

    4
    hr
  • (v)
    2
    3

    10
    hr
Question 50
50.
In an eating contest, the eating capacities of A, B and C are 15 gm/sec, 12 gm/sec and 8 gm/sec respectively. If the amount of food to be eaten is 21 kg, in how much time is it consumed if all three participants start eating together ?
  • (i)
    11
    min
  • (ii)
    10
    min
  • (iii)
    8
    min
  • (iv)
    9
    min
  • (v)
    13
    min
Question 51
51.
In a certain exam, for every correct answer, 9 marks are added. For every wrong answer 6 marks are subtracted. A student attempted 60 questions and secured 270 marks. How many answers are correct and how many are wrong?
  • (i)
    43 correct and 17 wrong
  • (ii)
    41 correct and 19 wrong
  • (iii)
    42 correct and 18 wrong
  • (iv)
    44 correct and 16 wrong
  • (v)
    40 correct and 20 wrong
Question 52
52.
    • A production line consists of three stages to be completed serially.
    • Stage1 work can be done by
    • 10
    • workers in
    • 5 days
    • .
    • Stage2 work can be done by
    • 11
    • workers in
    • 15 days
    • .
    • Stage3 work can be done by
    • 12
    • workers in
    • 9 days
    • .
    • If
    • 14
    • ,
    • 13
    • and
    • 12
    • workers are hired to do
    • Stage1, Stage2 and Stage3 works respectively,
    • in how many days is the work completed ?
  • (i)
    25
    24

    89
    days
  • (ii)
    25
    2

    7
    days
  • (iii)
    25
    24

    91
    days
  • (iv)
    25
    22

    91
    days
  • (v)
    25
    8

    31
    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
      -
      40
      15
      40
      -
      50
      20
      50
      -
      60
      25
      60
      -
      remaining
      30
    • How much amount has to be paid if the consumption is
    • 15 kl
    • .
  • (i)
    ₹222
  • (ii)
    ₹243
  • (iii)
    ₹213
  • (iv)
    ₹241
  • (v)
    ₹225
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
      10
      30
      -
      70
      15
      70
      -
      80
      20
      80
      -
      remaining
      25
    • How much amount has to be paid if the consumption is
    • 53 kl
    • .
  • (i)
    ₹637
  • (ii)
    ₹649
  • (iii)
    ₹645
  • (iv)
    ₹670
  • (v)
    ₹629
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
      20
      20
      -
      70
      25
      70
      -
      90
      30
      90
      -
      remaining
      35
    • How much amount has to be paid if the consumption is
    • 73 kl
    • .
  • (i)
    ₹1610
  • (ii)
    ₹1740
  • (iii)
    ₹1860
  • (iv)
    ₹1900
  • (v)
    ₹1690
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
      -
      60
      18
      60
      -
      80
      23
      80
      -
      90
      28
      90
      -
      remaining
      33
    • How much amount has to be paid if the consumption is
    • 96 kl
    • .
  • (i)
    ₹2178
  • (ii)
    ₹1888
  • (iii)
    ₹2018
  • (iv)
    ₹2168
  • (v)
    ₹1898
    Assignment Key

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