Question

if 4 men take 6 hours to repair a road how long will it take 3 men to do this job, if they work at a same rate ?

Answer 1

Let t be the time taken for the 3 men to finish the job.

4×6 = 3×t

24 = 3×t

t = 24/3

t = 8 hours

Answer 2

Answer:

The number of men is inversely proportional to the time taken to do the job.

Let t be the time taken for the 8 men to finish the job.

$\sf4 × 6 = 8 × t \\ \sf24 = 8t \\ \sf \: t = 3 days$

hope it helps (~‾▿‾)~