Question

On Thursday a local shop sold a combination of 417 hamburgers and cheese burgers. The number of cheeseburgers sold was two times the number of hamburgers sold. How many burgers were sold on Thursday

Answer 1

The number of hamburgers sold was 139 and the number of cheeseburgers sold was 278.

Explanation:

Let

x -----> the numbers of hamburgers sold on Thursday

y -----> the numbers of cheeseburgers sold on Thursday

we know that

`x+y=417` ----> equation A

`y=2x` ----> equation B

Substitute the equation B in equation A and solve for x

`x+2x=417`

`3x=417`

`x=139`

Find the value of y

`y=2(139)=278`

therefore

The number of hamburgers sold was 139 and the number of cheeseburgers sold was 278.