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#### Direct and Inverse Proportion Book Back Questions

7th Standard EM

Reg.No. :
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Maths

Time : 00:45:00 Hrs
Total Marks : 30
4 x 1 = 4
1. If Mani buys 5kg of potatoes for Rs.75 then he can buy ______kg of potatoes for Rs.105.

(a)

6

(b)

7

(c)

8

(d)

5

2. An aircraft can accommodate 280 people in 2 trips. It can take ______trips to take 1400 people.

(a)

8

(b)

10

(c)

9

(d)

12

3. 12 cows can graze a field for 10 days. 20 cows can graze the same field for_____ days.

(a)

15

(b)

18

(c)

6

(d)

8

4. 4 typists are employed to complete a work in 12 days. If two more typists are added, they will finish the same work in _______ days.

(a)

7

(b)

8

(c)

9

(d)

10

5. 4 x 1 = 4
6. If the cost of 8 apples is ` 56 then the cost of 12 apples is _____________.

()

Rs.84

7. A car travels 60 km with 3 liters of petrol. If the car has to cover the distance of 200 km, it requires _______ liters of petrol.

()

10 litres

8. If 7 m cloth costs 294, then the cost of 5 m of cloth is ______.

()

Rs.210

9. If a machine in a cool drinks factory fills 600 bottles in 5 hrs, then it will fill ______ bottles in 3 hours.

()

360

10. 2 x 1 = 2
11. Distance travelled by a bus and time taken are in direct proportion.

(a) True
(b) False
12. Number of students in a hostel and consumption of food are not in direct proportion.

(a) True
(b) False
13. 3 x 2 = 6
14. If half a meter of cloth costs Rs.15. Find the cost of 8$\frac {1}{3}$ meters of the same cloth.

15. If 30 men can reap a field in 15 days, then in how many days can 20 men reap the same field? (using unitary method)

16. 6 pumps are required to fill a water sump in 1 hr 30 minutes. What will be the time taken to fill the sump if one pump is switched off?

17. 3 x 3 = 9
18. If 6 children shared 24 pencils equally, then how many pencils are required for 18 children?

19. If 15 chart papers together weigh 50 grams, how many of the same type will be there in a pack of 2$\frac {1}{2}$ kilogram?

20. A car travels 90km in 2hours 30minutes. How much time is required to cover 210km?

21. 1 x 5 = 5
22. 60 workers can spin a bale of cotton in 7 days. In how many days will 42 workers spin it?