Question

Q.1 – Tick (√) the correct option: -

a) A car travels 108km in 12 litres of petrol. In 10 litres of petrol, it will travel

a distance of –

90km 518.4km









b) If 4 men can complete a work in a week, how many men will complete the

same work in two weeks?

2 4 8 14

c) Cost of notebooks is Rs. 90 per dozen. Cost of 18 notebooks is –

Rs. 180 Rs. 120 Rs. 45 Rs. 135

d) 36 men can complete a piece of work in 20 days. In how many days will

the work be done if the number of men is reduced to 12 –

40 days 6.6 days 60 days 8

days

e) ab – a – b + 1 = ?

(a – 1) (b – 1) (1 – a) (1 – b) (a – 1) (1 – b) (1 – a)(b – 1)

f) (7a2 – 63b2) = ?

(7a–9b) (9a+7b) (7a–9b) (7a+9b) 9(a-3b) (a+3b) 7(a-3b) (a+3b)

Q.2 – If 30 metres of cloth can be bought for Rs. 810, how many metres of cloth can be bought for

Rs. 1215?

Q.3 – A car can reach a certain place in 12 hours at the speed of 60km/hr. by how much should the

speed be increased so that it completes the journey in 10 hours?

Q.4 – 40 persons take 30 days to complete a work. How long will it take to complete the work, if 20

more persons join them?

Q.5 – A fort has enough food for 800 soldiers for 25 days. If a reinforcement of 200 soldiers joins

them now, how long will the food last?​

Answer 1

Answer:

first answer is 90 km

second answer is2

Answer 2

Answer:

Q.2 – If 30 metres of cloth can be bought for Rs. 810, how many metres of cloth can be bought for

Rs. 1215?

THE ANSWER IS:

45 meters of cloth can be bought for Rs. 1215