1.  The sum of three numbers is 98. If the ratio of the first to the second is 2:3. And that of the second to the third is 5:8, then the second number is:
A. 30
B. 27
C. 23
D. 33

Answer: Option A

Explanation:

Then, A:B = 2:3 and B:C = 5:8

= (5 x 3/5) : (8 x 3/5) = 3:24/5

A:B:C = 2:3:24/5

= 10:15:24 => B = 98 x 15/49 = 30.