Question
Rohit and Mohit started a business together by
investing a total of Rs. 18000 in the ratio of 5:4, respectively. After 3 months, Rohit increased his investment by Rs. 2000 and after 5 more months, Mohit decreased his investment by Rs. 1000. Find the total annual profit earned, if the difference between their annual profits is Rs. 2400.Solution
Let the total profit earned at the end of the year be Rs. 'p' Initial investment done by Rohit = 18000 X (5/9) = Rs. 10000 Initial investment done by Mohit = 18000 - 10000 = Rs. 8000 Profits sharing ratio of Rohit and Mohit = (10000 X 3 + 12000 X 9):(8000 X 8 + 7000 X 4) = (30 + 108):(64 + 28) = 138:92 = 3:2 According to question: (3p/5) - (2p/5) = 2400 Or, (p/5) = 2400 Total profit earned (p) = (2400 X 5) = Rs. 12000
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