Question

40 men can finish a piece of work in 26 days.How many men will be needed to finish it in 16 days?

Answer 1

no. of men = 40 men. x mens
days. = 26 days 16 days
this is a case of inverse variation
thus,
40×26 =16x
40×26/ 16 = 65
thus 65 mens are required

Answer 2

40 men = 26 days (Given)

Find the number of men needed to complete the work in 1 day:

26 days = 40 men

1 day = 26 x 40

1 day = 1040 men

Find the number of men needed to complete the work in 16 days:

1 day = 1040 men

16 days = 1040 ÷ 16

16 days = 65 men

Answer: 65 men is needed to complete the work in 16 days