Question
Selling price of article βAβ when sold at a profit
of 32% is Rs. 270 more than its selling price when sold at a loss of 40%. If the cost price of article βBβ is Rs. 64 more than that of βAβ, then find the cost price of article βBβ.Solution
Let the cost price of article βAβ = Rs. β100yβ Then, selling price of the article when it is sold at a profit of 32% = 1.32 Γ 100y = Rs. β132yβ And, selling price of the article when it is sold at a loss of 40% = 0.60 Γ 100y = Rs. β60yβ According to the question, 132y β 60y = 270 Or, y = (270/72) Or, y = 3.75 So, cost price of article βAβ = 100 Γ 3.75 = Rs. 375 Therefore, cost price of article βBβ = 375 + 64 = Rs. 439
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When a body falls freely
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