Difficulty: Easy
Correct Answer: Bindu
Explanation:
Introduction / Context:Age-difference questions are easily handled by setting a baseline variable and expressing others relative to it. The youngest will be the one with the smallest algebraic value.
Given Data / Assumptions:
Concept / Approach:Let Bindu = b. Then compute each other person in terms of b and compare magnitudes.
Step-by-Step Solution:
Let Bindu = b.Sunita = b + 3.Sashi = (b + 3) + 2 = b + 5.Shekhar = b + 1.Ordering by age: Sashi (b+5) > Sunita (b+3) > Shekhar (b+1) > Bindu (b).Verification / Alternative check:Sample values: if Bindu = 10, then Shekhar = 11, Sunita = 13, Sashi = 15. Clearly Bindu is youngest. Any other b preserves this order.
Why Other Options Are Wrong:
Common Pitfalls:Mixing up “older than” direction or forgetting to propagate differences correctly (e.g., computing Sashi as Sunita − 2).
Final Answer:Bindu
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