question_answer

A grocer mixes coffee powder of 2 types, one of which is priced at ` 60 and the other at ` 90. What should be the ratio of combining the two, to sell the blended mix coffee powder of the two types at ` 80?

A) 2 :1                  

B) 2 : 3   

C) 1: 2      

D)        3 : 2

Correct Answer: C

Solution :

Sol.      [c] Cost of 1st type of coffee powder = ` 60 Cost of 2nd type of coffee powder = ` 90 According to rule of alligation The required mixing ratio is = 10 : 20 = 1:2