Question

If 900 persons can finish a construction work in 40 days, how many persons are needed to complete the work if 25 days?

Answer 1

Answer:

LET NO. OF WORKERS REQUIRED = x  

No. of people  People         900      x

 No. of days                             40       24      

 ∴ It's inverse variation as No. of people increase No. of days decreases

900*40 = 25x

x = 36000/25

x = 1440

∴ No. of people needed is 1440 to complete the work in 25 days

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