question_answer

In what ratio Darjeeling tea costing Rs. 320 per kg be mixed with Asom tea costing Rs. 250 per kg, so that there is a gain of 20% by selling the mixture at Rs. 324 per kg?

A) 1 : 2                             

B) 2 : 3

C) 3 : 2                             

D) 2 : 5

Correct Answer: D

Solution :

Given, SP = Rs. 324

\[\therefore \] \[CP=\frac{SP\times 100}{100+Gain%}=\frac{324\times 100}{100+20}=\frac{324\times 100}{120}=Rs.270\]

\[\therefore \] Required ratio \[=20:50=2:5\]