Solve the following.

10 men can construct a 75km road in 5 days. In how many days can 15 men construct 45km road?

Open in App

Solution

Let 15 men construct 45 km road in x days.

Number of days increase when the length of road increases.

This is direct proportion.

Number of days decrease when the number of men increases.

This is inverse proportion.

The detailed proportions are:

Men

Km (Road)

Days

10

75

5

15

45

x

Thus, 15 men can construct 45 km road in 2 days.

Suggest Corrections

Similar questions

10

75 k m

5

15

45 k m

40 men can build a road in 10 days, working 5 hours a day. In how many days will 30 men, working 8 hours a day, complete the road?

36

18

27

9

15

Join BYJU'S Learning Program