A work can be finished in 16 days by twenty women. The same work can be finished in fifteen days by sixteen men. The ratio between the capacity of a man and a woman is
Choices.
A) 1:3  B) 4:3  C) 2:3  D) 2:1  E) 3:1
Explanation :   Work done by 20 women in 1 day = 1/16   Work done by 1 woman in 1 day = 1/(16×20)   Work done by 16 men in 1 day = 1/15   Work done by 1 man in 1 day = 1/(15×16)   Ratio of the capacity of a man and woman =1/(15×16) : 1/(16×20) = 1/15 : 1/20   = 1/3 :1/4 = 4:3   Answer : Option 4:3
<result>B</result>
A work can be finished in 16 days by twenty women. The same work can be finished in fifteen days by sixteen men. The ratio between the capacity of a man and a woman is