Question

Ea worth rs. 126 per kg and rs. 135 per kg are mixed with a third variety in the ratio 1 : 1 : 2. if the mixture is worth rs. 153 per kg, the price of the third variety per kg will be:

Answer 1

Let price of third variety=x

Sum of ratios=1+1+2=4

Cost of total=4*153=612

Total cost=1*126+1*135+2*x=612

126+135+2x=612
261+2x=612
2x=612-261=351
x=175.50
C0st of third variety=rs 175.50 per kg