Question

There are 2 category of rice 1) @ 60rupee per Kg 2) @ 40 rupee per Kg.
The ratio of these 2 rices ( first taken first and second second in the ratio) for making the avg. rate of rice 55 rupee per Kg will be

Answer 1

CP of 1st unit is 60 rs/kg

CP of 2nd unit is 40rs/kg

Mean price is 55.

The ratio should be (mean price - CP of 2nd unit) : (CP of 1st unit- mean price.

Which is (55-40):(60-55)=15:5=3:1

The answer is the categories of rice worth 60rs/kg and 40rs/kg should be mixed at 3:1 ratio to make the average rate of the rice @55rs/kg