Question:
The ratio of number of men and women in a committee is 5:6 . If the percentage increase in the number of men and women by 20% and 10% respectively, what will be the new ratio ?
A6:7
B10:11
C9:10
DCannot be determined
Answer:
B. 10:11
Explanation:
m : w = 5 : 6 New Composition = (m + 20m/100) : (w + 10w/100) = 6m/5 : 11w/10 = 12m : 11w 12(5x/11) : 11(6x/11) = 60x/11 : 66x/11 = 10x : 11x = 10 : 11