Question

If the counting numbers are arranged as shown, under which letter will the number 88 appears? THANK YOU.

A B C D E
1 2 3 4 5
6 7 8 9 10
11 12 _ _ _
_ _ _ _ _
_ _ _ _ _

Answer 1

Visualize this as follows:

A=1,6,11,16,...
B=2,7,12,17,...
C=3,8,11,18,...
D=4,9,14,19,...
E=5,10,15,20,...
and the cycle repeats itself.
Can you figure out under which letter 88 will fall?