Question
Selling price of article βAβ when sold at a profit
of 35% is Rs. 240 more than its selling price when sold at a loss of 25%. If the cost price of article βBβ is Rs. 80 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 35% = 1.35 Γ 100y = Rs. β135yβ And, selling price of the article when it is sold at a loss of 25% = 0.75 Γ 100y = Rs. β75yβ According to the question, 135y β 75y = 240 Or, y = (240/60) Or, y = 4 So, cost price of article βAβ = 100 Γ 4 = Rs. 400 Therefore, cost price of article βBβ = 400 + 80 = Rs. 480
Which method is used by Hicks to eliminate the income effect when price of a product is changed
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Calculate Domestic Income: