Question
A seller bought 25 kg of apples at Rs. 40 per kg. He sold
some at a profit of 15% and the rest at a profit of 25%. If he earned a total profit of Rs. 175, determine the quantity of apples sold at 25% profit.Solution
ATQ,
Let the quantity of apples sold at 25% profit be βxβ kg and the quantity of apples sold at 15% profit be β25 β xβ kg.
ATQ;
40 Γ 0.15 Γ (25 β x) + 40 Γ 0.25 Γ x = 175
Or, 150 β 6x + 10x = 175
Or, 4x = 25
Or, x = 6.25
Therefore, the seller sold 6.25 kg of apples at 25% profit.
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