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CAT 2018 Slot 2 · Quant · Ratio and Partnership · medium

A starts a business with Rs 30,000. B joins 4 months later with Rs 45,000, and C joins 9 months after the start with Rs 90,000. If the profit at the…

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A starts a business with Rs 30,000. B joins 4 months later with Rs 45,000, and C joins 9 months after the start with Rs 90,000. If the profit at the end of the year is Rs 1,21,000, what is B's share?
  1. A. Rs 33,000
  2. B. Rs 44,000
  3. C. Rs 48,000
  4. D. Rs 40,000
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Answer: (B) Rs 44,000

Profit is shared in the ratio of capital × time (in months invested during the year).

A: 30,000 × 12 = 3,60,000
B: 45,000 × 8 = 3,60,000
C: 90,000 × 3 = 2,70,000

Dividing by 90,000: the ratio is 4 : 4 : 3, total 11 parts.

Each part = 1,21,000/11 = 11,000, so B's share = 4 × 11,000 = Rs 44,000.

The trap is sharing by capital alone or by time alone instead of their product.
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Original question written in the CAT 2018 Slot 2 pattern and checked twice for the correct answer. Not an official question paper. How we write and check questions · Corrections policy · Report a mistake