Question

Tea worth Rs. 135 per kg and Rs. 126 per kg are mixed in the ratio 1:2. The total cost of the mixture will be Rs. ___ per kg.

Answer 1

Given ratio is 1:2
Let us take 1kg of Tea of first type
and 2kg of tea of second type
Total weight of mixture =( 1kg+2kg )=3kg
Total cost of mixture = $Rs.135\times 1+Rs.126\times 2$
= Rs. (135+252)
= Rs. 387
Cost of 3kg of mixture=Rs. 387
Cost of 1kg of mixture= Rs. $\frac{387}{3}$ = Rs. 129
$\therefore$ Worth of mixture is Rs. 129 per kg.