At a certain organisation, the number of male members went up by 13% in the year 2001 from year 2000, and the number of females members went down by 6% in the same time period. If the total membership at the organisation went up by 1.2% from the year 2000 to 2001, what was the ratio of male members to female members in the year 2000?
Answers
A) 1:2 B) 1:3 C) 2:3 D) 3:5 E) 2:1
men increase by 13% ==&gt; 1.13M = males in 2001   women decrease by 6% ==&gt; 0.94F = women in 2001   total employees increase by 1.2% ==&gt; 1.012*(M + F) = total number of employees in 2001   Obviously   (males in 2001) + (females in 2001) = total number of employees in 2001   1.13M + 0.94F = 1.012*(M + F)   1.13M + 0.94F = 1.012M + 1.012F   1.13M - 1.012M = 1.012F - 0.94F   0.108M = 0.072F   M/F = (0.072)/(0.118) = 72/118 = 3/5   Answer =(3:5)
<result>D</result>
At a certain organisation, the number of male members went up by 13% in the year 2001 from year 2000, and the number of females members went down by 6% in the same time period. If the total membership at the organisation went up by 1.2% from the year 2000 to 2001, what was the ratio of male members to female members in the year 2000?