A started a business with ₹21,000 and was joined afterwards by B with ₹36,000. After how many months did B join if the profits at the end of the year are divided equally?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → 5
In a partnership, profit is shared in the ratio of capital \(\times\) time. Equal shares mean the two products are equal. A's money is in for all 12 months; let B's money be in for \(m\) months.
\(21000\times12=36000\times m\)
\(m=\displaystyle\frac{252000}{36000}=7\) months
B's money was in for the last 7 months, so B joined after \(12-7=5\) months