Question

If 20 workers can build a wal 36 m long in 15 days. The wal can be built by 30 workers in : (a) 24 days ( b) 18 days ( c) 15 days ( d ) 10 days​

Answer 1

Answer:

Option (d) 10 days is correct answer.

Step-by-step explanation:

if 20 workers build a wall in 15 days

then 1 worker will do the same job in 15 X 20 days ( One worker needs more days to complete the work)

therefore 30 workers will do the same job in 15 X 20/ 30

                            i.e. 300/30 = 10 days

(more numbers of worker will complete the job in less days.)

Option (d) 10 days is correct answer.