A began a business with Tk 85,000. He was joined afterward by B with Tk. 42,500. If the profit at the end of the year is divided into the ratio of 3 : 1. Then, B was in the business for -

Question: A began a business with Tk 85,000. He was joined afterward by B with Tk. 42,500. If the profit at the end of the year is divided into the ratio of 3:1. Then, B was in the business for -

Solution:
Suppose, B joined for X months.
Then, (85000 × 12)/(42500 × X) = 3/1
⇒ X = (85000 × 12)/(42500 × 3)
⇒ X = 8

So, B joined for 8 months.