A trader mixes three varieties of groundnuts costing Rs. ,50, Rs., 20 and Rs., 30 per k g in ratio 2

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7.Profit and Loss

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A trader mixes three varieties of groundnuts costing $Rs. \,50, Rs.\, 20$ and $Rs.\, 30$ per $k g$ in the ratio $2: 4: 3$ in terms of weight and sells the mixture at $Rs.\, 33$ per $kg .$ What percentage of profit does he make?

A

$8$

B

$9$

C

$10$

D

None of these

Solution

cost price $=50 \times 2+20 \times 4+30 \times 3=₹ 270$

Selling price $=33 \times 9=Rs. 297$

$\therefore \quad$ Profit $\%=\frac{S \cdot P .-C \cdot P \cdot}{C . P .} \times 100=\frac{297-270}{270} \times 100=10 \%$

Standard 13

Quantitative Aptitude

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