Question

A trader sells part of his stock of calculators at 20% profit and the remaining at 40% profit. On the whole, he gains 28%. In what ratio did he sell the calculators at 20% profit to those at 40% profit?

Q: Answer-A trader sells part of his stock of calculators at 20% profit and the remaining at 40% profit. On th...

Let number or value sold at 20 profit x units, at 40 profit y units Overall profit is weighted average 20x 40y x y 28 20x 40y 28x 28y 40y 28y 28x 20x 12y 8x divide by 4 3y 2x x y 3 2 Thus ratio 20 profit 40 profit x y 3 2

A 3:2

B 5:7

C 1:1

D 2:5

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A trader sells part of his stock of calculators at 20% profit and the remaining at 40% profit. On the whole, he gains 28%. In what ratio did he sell the calculators at 20% profit to those at 40% profit?

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