10 students of class 10 took part in a mathe matic quiz. If the number of girls is 4 more than number of boys, find the number of boys and girls who took part in the quiz. (USING ALGEBRAIC METHOD)
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Answer:
no.of boys=3
no. of girls= 7
Step-by-step explanation:
let no. of girls =x
and no. of boys = y
x+y=10.......(i)
x= y+4
putting the value of x in eq (i)
y+4+y= 10
2y+4=10
2y=6
y=3
putting in eq (i)
x+3=10
x=7.
Answered by
0
Answer:
No.of boys is 3 and the no. of girls is 7.
Step-by-step explanation:
Let the number of boys be x and number of girls be y .
According to the question,
x+y=10 (1)
y=x+4
y-x=4 (2)
Adding (1) and ( 2 )
2y=14
y=14/2
=7
Substituting y=7 in eq.1
x= 10-7=3
So x=3 and y=7 .
No.of boys is 3 and the no. of girls is 7.
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