Question

EXERCISE 3.2
Form the pair of linear equations in the following problems, and find their solutions
graphically.
(i) 10 students of Class X took part in a Mathematics quiz. If the number of girls is 4
more than the number of boys, find the number of boys and girls who took part in
the quiz.​

Answer 1

Answer:

let,no. of boys be'x'

And,no. of girls be 'x+4'

ATQ,

x+x+4=10

2x=6

x=3

No. of boy = 3

No. of girls = 3+4 = 7