Multiple choice

A and B started a business by investing in the ratio of 4: 7. After 6 months, C joined them investing the same amount as B. What would be the ratio of their share of profit after one year?

  1. $9: 15: 7$
  2. $8: 14: 7$
  3. $5: 12: 7$
  4. $8: 14: 9$
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A invests 4x for 12 months, B invests 7x for 12 months, C invests 7x for 6 months. Profit ratio = 4x×12 : 7x×12 : 7x×6 = 48x : 84x : 42x = 8 : 14 : 7. Investment period matters - C joined after 6 months.

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