A began business with 1000 and is joined afterwards by B with 6000. When did B join, if the profits at the end of the year are divided equally?  Answers.
A) 8 months	B) 9 months	C) 10 months	D) 2 months	E) None of these
Let B join after x months of the start of the business so that B’s money is invested for (12 – x) months.   ∴ Profit ratio is 12 × 1000 : (12 – x) × 6000   or 12 : 6(12 – x)   Since profit is equally divided so   12 = 6(12 – x) or x = 2. Thus B joined after 8 months.   Answer 2 months
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A began business with 1000 and is joined afterwards by B with 6000. When did B join, if the profits at the end of the year are divided equally?