A trader mixes three varieties of groundnuts costing Rs.50, Rs.20 and Rs.30 per kg in the ratio 2 : 4 : 3 by their weight, and sells the mixture at Rs.33 per kg.
What is the profit percentage earned by the trader?

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10%

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None of these

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Solution

The correct option is C
10%

Assume the trader bought 2 kg, 4 kg and 3 kg of the three varieties.

C.P. of 9 kg = Rs.(2 $\times$ 50 + 4 $\times$ 20 + 3 $\times$ 30) = Rs.270.

S.P. of 9 kg = Rs.(9 $\times$ 33) = Rs.297.

$∴$ Profit % = $(\frac{297 - 270}{270} \times 100) % = 10 %$

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A trader mixes three varieties of groundnuts costing Rs.50, Rs.20 and Rs.30 per kg in the ratio 2 : 4 : 3 by their weight, and sells the mixture at Rs.33 per kg. What is the profit percentage earned by the trader?

The correct option is C 10% Assume the trader bought 2 kg, 4 kg and 3 kg of the three varieties. C.P. of 9 kg = Rs.(2 × 50 + 4 × 20 + 3 × 30) = Rs.270. S.P. of 9 kg = Rs.(9 × 33) = Rs.297. ∴ Profit % = (297−270270×100)%=10%

A trader mixes three varieties of groundnuts costing Rs.50, Rs.20 and Rs.30 per kg in the ratio 2 : 4 : 3 by their weight, and sells the mixture at Rs.33 per kg.
What is the profit percentage earned by the trader?

The correct option is C
10%

Assume the trader bought 2 kg, 4 kg and 3 kg of the three varieties.

C.P. of 9 kg = Rs.(2 $\times$ 50 + 4 $\times$ 20 + 3 $\times$ 30) = Rs.270.

S.P. of 9 kg = Rs.(9 $\times$ 33) = Rs.297.

$∴$ Profit % = $(\frac{297 - 270}{270} \times 100) % = 10 %$