Problem: The sum of three numbers is 98. The ratio of the first to the second is 32, and the ratio of the second to the third is 85. The second number is:
Answer Choices:
A. 15
B. 20
C. 30
D. 32
E. 33
Solution:
Let 10m,15m,24m be the three numbers. Then 10m+15m+24m=98,∴m=2 and 15m=30.