The sum of three numbers is 98. If the ratio of the first to the second is 2:3 and the ratio of the second to the third is 5:8, find the second number.
A20
B30
C40
D50
Explanation
Ratio a:b=2:3, b:c=5:8 => a:b:c = 10:15:24. Sum of parts = 49. 49 parts = 98 => 1 part = 2. Second number = 15 * 2 = 30.
Exam Relevance
- Topic: Ratio and Proportion
- Subtopic: Ratio Combination
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