Question

If 20 men can build a bridge in
24 days, then 32 men can build
two of such bridges in how many
days?​

Answer 1

Answer:

38.4 days....may be answer

Answer 2

work done by 1 men in 1 day is 20/20 × 24

now, work done by 32 men in 1 day = (20/20×24)×32 = 1/15

In this way 32 men can make a bridge in 15 day and ...

In 30 days they built 2 such bridges.

hence, 30 days is the correct answer.