Question
Aman bought two guitars, βPβ and βQβ, with cost
prices in the ratio 7:9, and sold them at a loss of 10% and a profit of 30%, respectively. If the total profit earned was Rs. 56, then find the price at which he sold guitar βQβ.Solution
ATQ, Let the cost price of guitar βPβ be Rs.7y. Cost price of guitar βQβ = Rs.9y. Selling price of guitar βPβ = 7y Γ 0.90 = 6.3y Selling price of guitar βQβ = 9y Γ 1.30 = 11.7y Total profit = 
Solve for 'y' = 2y = 56 β y = 28 Therefore, selling price of guitar βQβ = 11.7 Γ 28 = Rs.327.6
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The value of:
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