CBSE Board Practice

Class VI Class VII Class VIII Class IX Class X
CBSE Grade VIII - Direct and Inverse Proportions
Question 1
1.
    • A can do a piece of work in
    • 12
      days
    • ,
    • B can do the work in
    • 10
      days
    • and C in
    • 12
      days
    • respectively.
    • In how much time can they do it together?
  • 3
    1
    4
    days
  • 4
    1
    2
    days
  • 3
    1
    2
    days
  • 4
    1
    4
    days
  • 3
    3
    4
    days
Question 2
2.
11 workers take 18 days to build a room. After working for 9 days, 6 workers left. In how many more days is the room built ?
  • 24.80 days
  • 19.80 days
  • 14.80 days
  • 16.80 days
  • 22.80 days
Question 3
3.
The cost of 18 pens is ₹342 and 15 pencils is ₹105. With an amount of ₹374, 16 pens are purchased. How many pencils can be purchased with the remaining amount ?
  • 8
  • 11
  • 13
  • 10
  • 9
Question 4
4.
If the cost of 7 apples is ₹840.00, the cost of 200 apples =
  • ₹24000.00
  • ₹22400.00
  • ₹23500.00
  • ₹24300.00
  • ₹25700.00
Question 5
5.
The sales tax for ₹100 of a bill is ₹18. How much sales tax has to be paid for a bill of ₹150 ?
  • ₹30.00
  • ₹24.00
  • ₹27.00
  • ₹22.00
  • ₹32.00
Question 6
6.
Cost of 9 toys of TypeA is ₹45 and 5 toys of TypeB is ₹90. Out of a sum of ₹354, 14 toys of TypeA are purchased. If 18 toys of TypeB have to be purchased, how much extra amount is needed?
  • ₹45
  • ₹37
  • ₹40
  • ₹35
  • ₹43
Question 7
7.
    • 6
    • men can do a work in
    • 17
    • days working
    • 4
    • hours a day.
    • In how many days can
    • 9
    • men do the same work, working
    • 4
    • hours a day?
  • 11
    1
    5
    days
  • 10
    2
    3
    days
  • 11
    1
    3
    days
  • 12
    days
Question 8
8.
If 60 men can do a piece of work in 156 days, how many men can do the same work in 78 days?
  • 121
  • 117
  • 120
  • 119
  • 123
Question 9
9.
If Martin can make 95 burgers in 5 min, in how much time can he complete an order of 437 burgers ?
  • 23 min
  • 26 min
  • 18 min
  • 28 min
  • 20 min
Question 10
10.
The total wage of 10 labourers for 14 days is ₹64400. What will be the total wage of 7 labourers for 17 days ?
  • ₹54740
  • ₹52540
  • ₹54940
  • ₹56240
  • ₹54040