Linear offsets in a three-way split: ₹ 710 is divided among A, B, and C such that A has ₹ 40 more than B and C has ₹ 30 more than A. Determine C’s share exactly.

Difficulty: Easy

Correct Answer: ₹ 270

Explanation:


Introduction / Context:
When amounts differ by fixed increments, assign a base variable and build the others from it. Sum to the total to find the base, then recover each share directly. This linear approach is quick and robust.


Given Data / Assumptions:

  • A = B + 40.
  • C = A + 30 = B + 70.
  • A + B + C = 710.


Concept / Approach:
Let B = x. Then A = x + 40 and C = x + 70. Sum and solve for x. Then compute C.



Step-by-Step Solution:

x + (x + 40) + (x + 70) = 710 ⇒ 3x + 110 = 710.3x = 600 ⇒ x = 200.C = x + 70 = 270.


Verification / Alternative check:
A = 240, B = 200, C = 270. Differences: A − B = 40 and C − A = 30; sum 240 + 200 + 270 = 710.



Why Other Options Are Wrong:
₹ 300, ₹ 135, ₹ 235, ₹ 250 do not fit the linear offsets with the total 710 when computed.



Common Pitfalls:
Misreading “more than” or forgetting to add both offsets when expressing C in terms of B.



Final Answer:
₹ 270

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