Question

One bar of candy A and two bars of candy B have 767 calories. Two bars of candy A and one bar of candy B contain 781 calories. How do you find the caloric content of each candy bar?

Answer 1

The calorie content of candies `A= 265; B=251`

Explanation:

`A+2B=767 (1)`
`2A+B=781 (2)`
Multiplying (1) by 2 we get `2A+4B=1534 (3)`

Subtracting equation (2) from equation (3) we get,

`3B=(1534-781) or 3B=753 :. B=251 and A=767-(2*251)=767-502=265`
The calorie content of candies `A= 265; B=251`[Ans]