Question

The mean marks of 150 students of a class is 65.6 the main marks of boys is 60 and the main marks of girls is 72 find the number of boys and girls in the class

Answer 1

Answer:

Solve the pair of linear eq to get the answer

Step-by-step explanation:

first eq

x + y = 150

reason is total students is 150 and we let x as boys and y as girls