Question

A starts a business with Rs.21,000 and later B joins him with Rs.36,000.After how many months did B join, if the profit is distributed in equal ratio at the end of year?
1. 8
2. 6
3. 9
4. 5

Answer 1

Correct Answer - Option 4 : 5

Given:

A start with investment Rs. 21,000 

B Joins with Rs. 36,000

Formula used:

Profit = investment × time

Calculation:

Let B invested for x months in the business.

A invest for a year that means 12 months.

A's profit = 21000 × 12

B's profit = 36000 × x

According to question 

A's profit = B's profit

⇒ 21000 × 12 = 36000 × x

⇒ x = (21000 × 12)/36000

⇒ x = 7 months

B invest after 12 – 7 = 5 months

∴ B invest after 5 months of business started by A