A started a business with ₹21,000 and is 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
We have,
Investment of A = Rs. 21000
Investment of B = Rs. 36000
We know that,
Profit = Investment × Time
Let assume that B joined after x months.
Now, according to question if profit is divided equally:
21000 × 12 = 36000 × (12 - x)
⇒ 21 = 3 × (12 - x)
⇒ 7 = 12 - x
⇒ x = 5