Question

Suili and Amin scored s and m marks, respectively, in a test. The total of their scores is 156 marks. If twice Amin's score is 57 marks more than Suili's score, find

Suili's score.

Answer 1

Suili's score is 85

Explanation:

s = Suili

m = Amin

s + m = 156

2m = s + 57

m = (s + 57) / 2

`s + (s + 57)/(2) = 156`

`(2s)/(2) + (s + 57)/(2) = 156`

`(3s + 57)/(2) = 156`

3s + 57 = 312

3s = 312 - 57

s = 85

So Suili's score is 85

Hope this helps!! <3