Question

a group of women can finish a piece of work in 50 days. in how many days will one-third the number of women be able to finish two-third of the work?

Answer 1

The group of women can finish the work in 5050 days.

=> one-third the number of women can finish the work in 50×3=150 days. 50×3=150 days. 

(because number of persons is inversely proportional to number of days)

=> one-third the number of women can finish two-third of the work in 150×23=100 days.150×23=100 days. 

(because amount of work is directly proportional to number of days)