Math Problem 9

A student conducts an experiment in biology lab and discovers that the ratio of the number of insects in a given population having characteristic X to the number of insects in the population not having characteristic X is 5:3, and that of the insects having characteristic X are male insects. What proportion of the total insect population are male insects having the characteristic X?

(A)1
(B)
(C)
(D)
(E)

Solution for GRE Math Problem 8:

Total steps down: 4+6+2=12
Total steps up: 3+2+9=14
So, he is standing by 14-12=2 steps above

Answer:(A) 2 steps above