Difficulty: Easy
Correct Answer: 15 years
Explanation:
Introduction / Context:We blend a given ratio with a future-value condition. First use the future condition to get Surjeet’s present age, then use the ratio to scale down to Sameer’s present age.
Given Data / Assumptions:
Concept / Approach:If Surjeet is 26 after 6 years, his present age is 26 − 6. Then assign 4 parts to Surjeet and 3 parts to Sameer proportionally to recover Sameer’s present age.
Step-by-Step Solution:
Surjeet now = 26 − 6 = 20Let common factor be k ⇒ 4k = 20 ⇒ k = 5Sameer now = 3k = 15Verification / Alternative check:Check ratio: 20 : 15 = 4 : 3. After 6 years, Surjeet is 26, consistent with the condition.
Why Other Options Are Wrong:21, 24, and 18 do not satisfy both the ratio and the future age condition simultaneously.
Common Pitfalls:Using 26 directly in the ratio without first subtracting 6 to get the present age.
Final Answer:15 years
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