Question

300 men can finish a work in 16 days. To finsh the work in 15 days the number of men required is

Answer 1

Hey there!!

300 men - 16 days

x men - 15 days

If days decrease , men increase ( inverse proportional )

300 : 16 : : x : 15

Inverse :

( 300 ) × ( 16 ) = ( 15 ) × ( x )

( 300 × 16 ) ÷ 15 = x

( 20 × 16 ) = x

320 = x

Men required are 320

_____________

Answer 2

total work = 300*16 = 4800 --------(1)

let x men be required to finish the work in 15 days

so , total work will be 15x ---------(2)

equating 1 and 2

15x = 4800

x = 4800/15

x = 320

320 men will be required to finish the work in 15 days