Question

1) If 52 men can consume a bag of wheat in 35 days . In how many days 28 men will consume the same quantity ?
2) Raghu can complete a piece of work in 3 days and Ravi completes it in 6 days . How long will they take if both of them work together ?
3) The cost of repairing a road is Rs.28480 per mile. How much does it cost to repair one km? (hint- 1 mile = 1.6 km).
4) 39 packets of 12 pencils each cost Rs. 374.40 .Find the cost of 52 packets of 10 pencils ?

chapter- Direct and indirect / inverse proportions

Answer 1

1. 52 /28=35/x
52/28×35=65
2.raghu do it in =3
So how much wrk he do in one day=1/3
Ravi do wrk in=6
So in 1 day =1/6
Together they do it in=1/3+1/6
=1/2
=2 days