Difficulty: Easy
Correct Answer: Rs. 70
Explanation:
Introduction / Context:
This is a classic share-splitting question with a condition tying one person’s amount to the sum of the others. Reducing the condition to one unknown for the combined share makes the arithmetic straightforward.
Given Data / Assumptions:
Concept / Approach:
Let T = B + C. Then A = (2/9)T and total is A + T = 385. Solve for T and then find A directly from the relation.
Step-by-Step Solution:
Verification / Alternative check:
Check: A + T = 70 + 315 = 385; condition holds because 2/9 of 315 is 70.
Why Other Options Are Wrong:
₹ 77, ₹ 82.50, and ₹ 85 do not satisfy A = (2/9)(385 − A); ₹ 90 is also inconsistent with the required fraction.
Common Pitfalls:
Treating 2/9 as a part of the whole instead of specifically of (B + C); ensure you form A + (B + C) for the total.
Final Answer:
Rs. 70
Discussion & Comments