Question
A started a business with an investment of Rs.1500.
After some months, B joins the business with an investment of Rs.2000 and after four more months C joins the business with Rs.2800. If the annual profit share of A and B is equal, then find for how many months C invested his money?Solution
Let B joined after ‘x’ months. => 1500 x 12 : (12 - x) x 2000 : 2800 x (12 – x – 4) => 1500 x 12 : (12 - x) x 2000 : 2800 x (8 – x) => 1500 x 12 = (12 - x) x 2000 => 12 – x = 9 => x = 3 C invested his money = 8 – x = 5 months
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