CBSE CLASS – VIII Mathematics (Direct and Inverse Proportions)

CBSE Worksheet-01

CLASS – VIII Mathematics (Direct and Inverse Proportions)

Choose the correct option:

1. If 14Kg of pulses cost Rs441, what is the cost of 22 Kg of pulses?

a. Rs 627      b. Rs 649

c. Rs 671      d. Rs 693

2. If 8 oranges cost Rs 10.40, how many oranges can be bought for Rs33.80?

a. 13        b. 18

c. 26        c.  24

3. A machine fills 420 bottles in 3 hours. How many bottles will it fill in 5 hours?

a. 252       b. 700

c. 504       d. 300

4. A car is travelling at a uniform speed of 75KM/ hr. How much distance will it cover in 20 minutes?

a. 25KM        b. 15KM

c. 30KM        d. 20KM

5. The weight of 12 sheets of a thick paper is 40 grams. How many sheets would weigh 1kg?

a. 480          b. 360

c. 300          c.  none of these

6. A pole 14m high casts a shadow of 10m. At the same time, what will be the height of a tree, the length of whose shadow is 7 metres?

a. 20m         b. 9.8m

c. 5m           d. None of these

7. A photograph of a bacteria enlarged 50000 times attains a length of 5cm. The actual length of bacteria is

a. 1000cm                b. 1/1000cm

c. 1/10000cm         d. 1/100 cm

8. 6 pipes fill a tank in 120 minutes, then 5 pipes will fill it in

a. 100min            b. 144min 

c. 140min            d. 108min

9. 3 persons can build a wall in 4 days, then 4 persons can build it in

a. 16/3 days                b. 3 days

c. 13/3 days               d. None of these

5 1/

10. A cars take 2 hours to reach a destination by travelling at 60km/hr. How long will it take while travelling at 80 km/hr?

a. 1hr 30 min                             b. 1hr 40 min

c. 2hrs 40 min                         d. None of these

Answer:

1.d

2.c

3. b

4. a

5. c

6. b

7. c

8. b

9. b

10. a


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