Question

$A$ started a business with $Rs.21,000$ and is joined afterwards by $B$ with $Rs.36,000$. After how many months did B join if the profit at the end of the year are divided equally ?

• A. $3$
• B. $4$
• C. $5$
• D. $6$

Answer 1

The correct option is C $5$

Suppose B joined after x months

then,

$21000\times 12=36000\times (12-x)$

$=>36x=180$

$=>x=5$