A began business with 12500 and is joined afterwards by B with 25000. When did B join, if the profits at the end of the year are divided equally?
Choose the correct choice from the following options:  A) 8 months  B) 9 months  C) 10 months  D) 6 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 × 12500 : (12 – x) × 25000   or 12 : 2(12 – x)   Since profit is equally divided so   12 = 2(12 – x) or x = 6. Thus B joined after 8 months.   Answer 6 months
<result>D</result>
A began business with 12500 and is joined afterwards by B with 25000. When did B join, if the profits at the end of the year are divided equally?