question_answer

35 kg of a type of sandal powder (type A) which costs Rs. 614 per kg was mixed with certain amount of another type of sandal powder (type B), which costs Rs. 695 per kg. Then, the mixture was sold at Rs. 767 per kg and 18% profit was gained. What was the amount of type B sandal powder in the mixture?

A) 24 kg                

B) 28 kg

C) 32 kg                

D) 36 kg

E) 20 kg

Correct Answer: B

Solution :

Selling price of the mixture" Rs. 767 per kg

Gain =18%

Then, cost price

\[=\frac{SP\times 100}{118}=\frac{767\times 100}{118}=Rs.\,650\]

Now, by the rule of alligation,

\[\therefore \] Amount of B sandal powder in the mixture = 28 kg