Question

form the pair of linear equations in the following problem . and find the solution graphically : 10 students of class 10 took part in a quiz . if the numbers of girls was 4 more than the boys, find the number of boys and girls in the quiz

Answer 1

let X be the number of boys in the quiz and Y be the number of girls in the quiz
x+y=10
x+4=y
x-y=-4
2x=6
x=3
y=7
therefore the number of boys in the trees is equal to 3 and the number of cores in the trees is equal to 7

Answer 2

Answer:

Step-by-step explanation:

Let X be the number of boys

and Y be the number of girls

By condition 1:

x+y=10 .....(1)

By condition 2:

x+4=y

x-y=-4. .....(2)

2x=6

x=3

Putting the value of X in equation (1)

3+Y=10

y=7

Therefore the number of girls are 7 and number of boys are 3

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