Discussion :: Time and Work
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Twenty women can do a work in sixteen days. Sixteen men can complete the same work in fifteen days. What is the ratio between the capacity of a man and a woman?
Answer : Option B
Explanation :
(20 x 16) women can complete the work in 1 day.
1 woman's 1 day's work =\( \frac { 1 } { 320 } \)
(16 x 15) men can complete the work in 1 day.
1 man's 1 day's work =\( \frac { 1 } { 240 } \)
so,required ratio = \( \frac { 1 } { 240 } \):\( \frac { 1 } {320 } \)
=\( \frac { 1 } { 3}\):\( \frac { 1 } {4}\)
= 4 : 3 (cross multiplied)
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