Q. 23.7( 13 Votes )

If 15 workers can build a wall in 48 hours, how many workers will be required to do the same work in 30 hours?

Answer :

The number of workers building a wall and time taken by them is inversely proportional.

Let x be the number of workers and y be the time taken.

(k is constant) (1)

Number of workers given=15

Time took =48 hrs

(Put in 1)

Wall has to be built in 30 hours


(Put in 1)


So, 24 workers are needed to build the wall in 30 hours.

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