A work can be finished in 20 days by 10 women. The same work can be finished in fifteen days by 20 men. The ratio between the capacity of a man and a woman is	Pick one:
A) 1:3 B) 4:3 C) 2:3 D) 2:1 E) 2:4
Work done by 10 women in 1 day = 1/20   Work done by 1 woman in 1 day = 1/(10×20)   Work done by 20 men in 1 day = 1/15   Work done by 1 man in 1 day = 1/(15×20)   Ratio of the capacity of a man and woman =1/(15×20) : 1/(10×20) = 1/15 : 1/10   = 1/3 :1/2 = 2:3   Option 2:3
<result>C</result>
A work can be finished in 20 days by 10 women. The same work can be finished in fifteen days by 20 men. The ratio between the capacity of a man and a woman is