Question
βPβ began a business by investing Rs. 24000. After
(x + 2) months, βQβ entered with Rs. 18000, and again after (x + 2) more months, βRβ joined them by investing Rs. 30000. If the profit-sharing ratio among them at the end of the year was 8:6:5 respectively, then after how many months from the beginning did βRβ join?Solution
ATQ, Let x be the number of months after which Q joined. P: βΉ24000 for 12 months β βΉ24000 Γ 12 = 288000 Q: βΉ18000 for (12 β x β 2) = 10 β x months β βΉ18000 Γ (10 β x) R: βΉ30000 for (12 β 2x β 4) = 8 β 2x months β βΉ30000 Γ (8 β 2x) Given profit ratio: P : Q : R = 8 : 6 : 5 Use Q : R = 6 : 5 18000(10 - x)/30000(8 - 2x) = 6/5 = 3(10 - x )/5(8 - 2x) = 6/5 = 3(10 - x) = 6(8 - 2x)Β = 30 - 3x = 48 - 12x = x = 2 Then, R joined after: 2x + 4 = 2(2) + 4 = 8 months
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