Question

The Teacher tells the class that the highest marks obtained by student in her class in thrice the lowest mark minus 5. the highest score is 82.what is the lowest score​

Answer 1

Answer:

let the highest mark b x and lowest mark be y then the equation will be

x = 2 Y + 7

87=2y+7.

87-7=2y

80=2y.

y=80/2

y=40..marks