question_answer

In what ratio must a grocer mix teas at Rs. 60 a kg and Rs. 65 a kg. So that by selling the mixture at Rs. 68.20 a kg he may gain 10%?

A) 3 : 2                 

B) 3: 4

C) 4: 3                              

D) 4: 5

Correct Answer: A

Solution :

CP of the mixture \[=\frac{68.20\times 100}{110}=Rs.\,62\] By Alligation Method \[\therefore \] The required ratio = 3: 2