Answer with Explanation:
(20 x 16) women can complete the work in 1 day.
1 woman's 1 day's work = 1/320 .
(16 x 15) men can complete the work in 1 day.
1 man's 1 day's work = 1/240
So, required ratio
= 1/240 : 1/320
= 1/3 : 1/4
= 4 : 3 (cross multiplied)
(20 x 16) women can complete the work in 1 day.
1 woman's 1 day's work = 1/320 .
(16 x 15) men can complete the work in 1 day.
1 man's 1 day's work = 1/240
So, required ratio
= 1/240 : 1/320
= 1/3 : 1/4
= 4 : 3 (cross multiplied)