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In what ratio must a merchant mix two varieties of oils worth Rs. 60/kg and Rs. 65/kg, so that by selling the mixture at Rs. 68.20/kg, he may gain 10% ?

A. 2018-02-20 02:03:00

B. 2018-02-20 04:03:00

C. 2018-02-20 03:04:00

D. 2018-02-20 03:02:00

View Answer

Correct choice: D

Explanation:

Let he mixes the oils in the ratio = x : y Then, the cost price of the oils = 60x + 65y Given selling price = Rs. 68.20 => Selling price = 68.20(x+y) Given profit = 10% = SP - CP => 10/100 (60x + 65y) = 68.20(x+y)-(60x + 65y) => 6x + 6.5y = 8.20x + 3.20y =>2.2x = 3.3y => x : y = 3 : 2

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Arithmetic Ability Alligation or Mixture

Arithmetic Ability
Alligation or Mixture