__Question:__A trader mixes three varieties of groundnuts costing Rs. 50, Rs. 20 and Rs. 30 per kg 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?

**Options:**

A. | 8% | |

B. | 9% | |

C. | 10% | |

D. | 11% | |

E. | None of these |

**Answer: Option C**

- Suppose he bought 2 kg, 4 kg and 3 kg of the three varieties.

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

S.P. of 9 kg = Rs. (9 x 33) = Rs. 297

Profit% = 27 270 x 100 % = 10%

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## More Questions Related to Quantitative Aptitude > Profit And Loss :

__Question 1.__A trader mixes 26 kg of rice at Rs. 20 per kg with 30 kg of rice of other variety at Rs. 36 per kg and sells the mixture at Rs. 30 per kg. His profit percent is:

**Options:**

- No profit, no loss
- 5%
- 8%
- 10%
- None of these

**Answer: Option B**

C.P. of 56 kg rice = Rs. (26 x 20 + 30 x 36) = Rs. (520 + 1080) = Rs. 1600.

S.P. of 56 kg rice = Rs. (56 x 30) = Rs. 1680.

So, Gain = \(\left(\frac{80}{1600}\times100\right)\) % = 5%

__Question 2.__A shopkeeper sells one transistor for Rs. 840 at a gain of 20% and another for Rs. 960 at a loss of 4%. His total gain or loss percent is:

**Options:**

- \(5\frac{15}{17}\)% loss
- \(5\frac{15}{17}\) % gain
- \(6\frac{2}{3}\) % gain
- None of these

**Answer: Option B**

C.P. of 1^{st} transistor = Rs. \(\left(\frac{100}{120}\times840\right)\) = Rs. 700.

C.P. of 2^{nd} transistor = Rs. \(\left(\frac{100}{96}\times960\right)\) = Rs. 1000

So, total C.P. = Rs. (700 + 1000) = Rs. 1700.

Total S.P. = Rs. (840 + 960) = Rs. 1800.

So, Gain % = \(\left(\frac{100}{1700}\times100\right)\) % = \(5\frac{15}{17}\) %

__Question 3.__100 oranges are bought at the rate of Rs. 350 and sold at the rate of Rs. 48 per dozen. The percentage of profit or loss is:

**Options:**

- \(14\frac{2}{7}\)% gain
- 15% gain
- \(14\frac{2}{7}\)% loss
- 15 % loss

**Answer: Option A**

C.P. of 1 orange = Rs. \(\left(\frac{350}{100}\right)\) = Rs. 3.50.

S.P. of 1 orange = Rs. \(\left(\frac{48}{12}\right)\) = Rs. 4

Gain% = \(\left(\frac{0.50}{3.550}\times100\right)\) % = \(\frac{100}{7}\) %= \(14\frac{2}{7}\) %

__Question 5.__Arun purchased 30 kg of wheat at the rate of Rs. 11.50 per kg and 20 kg of wheat at the rate of Rs. 14.25 per kg. He mixed the two and sold the mixture. Approximately what price per kg should he sell the mixture to make 30% profit?

**Options:**

- 15.20
- 16.30
- 17.40
- 18.50
- None of these

**Answer: Option B**

- C.P. of 50 kg wheat = Rs. (30 x 11.50 + 20 x 14.25)

= Rs. (345 + 285) = Rs. 630

S.P. of 50 kg wheat = 130% of Rs. 630 = 130 100 x 630 = Rs. 819 S.P. per kg = 819 50 = Rs. 16.38 = Rs. 16.30.

__Question 6.__By selling 45 lemons for Rs. 40, a man loses 20%. How many should be sell for Rs. 24 to gain 20% in the transaction?

**Options:**

- 18
- 19
- 20
- 23.8
- None of these

**Answer: Option A**

- Let S.P. of 45 lemons be Rs.

*x*. Then, 80 : 40 = 120 :

*x*or

*x*= 120 x 40 80 = 60 For Rs. 60, lemons sold = 45. For Rs. 24, lemons sold = 45 60 x 24 = 18.

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