If 20 men take 40 days to complete a job, in how many days can 25 men complete the job?

Question

If 20 men take 40 days to complete a job, in how many days can 25 men complete the job? (A) 32 (B) 30 (C) 50 (D) 42

Tardigrade Admin · Accepted Answer

If 20 men can complete the job in 40 days, then the work measured in terms of mandays is 20 × 40=800. If this work is to be done by 25 men, then the number of days they will take is (800/25)=32.

Q. If 20 men take 40 days to complete a job, in how many days can 25 men complete the job?

32

30

50

42

If 20 men can complete the job in 40 days, then the work measured in terms of mandays is $20 \times 40 = 800$ .
If this work is to be done by 25 men, then the number of days they will take is $\frac{800}{25} = 32$ .

Q. If 20 men take 40 days to complete a job, in how many days can 25 men complete the job?

32

30

50

42

If 20 men can complete the job in 40 days, then the work measured in terms of mandays is 20×40=800. If this work is to be done by 25 men, then the number of days they will take is 25800​=32.

If 20 men can complete the job in 40 days, then the work measured in terms of mandays is $20 \times 40 = 800$ .
If this work is to be done by 25 men, then the number of days they will take is $\frac{800}{25} = 32$ .