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CAT 2021 Slot 3 · Quant · Ratio and Partnership · easy

After 4 months B joins with ₹80,000, and 2 months after that C joins with ₹1,00,000. If the profit at the end of the year is ₹98,000, what is C's…

Single correct option

A starts a business with ₹60,000. After 4 months B joins with ₹80,000, and 2 months after that C joins with ₹1,00,000. If the profit at the end of the year is ₹98,000, what is C's share?
  1. A. ₹28,000
  2. B. ₹30,000
  3. C. ₹32,000
  4. D. ₹36,000
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Answer: (B) ₹30,000

Profit is shared in the ratio of capital × time.

- A: 60,000 × 12 = 7,20,000
- B: 80,000 × 8 = 6,40,000 (joins after 4 months)
- C: 1,00,000 × 6 = 6,00,000 (joins after 6 months)

Ratio = 72 : 64 : 60 = 18 : 16 : 15 (sum 49).

C's share = 98,000 × 15/49 = ₹30,000.

Trap: C joins 2 months *after B*, i.e. 6 months after the start – using 8 months for C gives a wrong ratio.
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