the numbers of boy and girls in a class are in the ratio 7 : 5. The numbers of boy is 8 more than the numbers of girls. What is the strength of class ?
Answers
Answered by
7
Step-by-step explanation:
no. of boys = 7x
no. of girls = 5x
7x = 5x + 8
=> 2x = 8
=> x = 4
Now,
no. of boys = 7 x 4
= 28
and join. of girls = 5 x 4
= 20
Hence,
strength of the class = 28 + 20
= 48
Answered by
0
Answer:
Step-by-step explanation:
Given ratio of boys to girls is 7:5
I.e let 7x be the total number of boys.
IIlrly let girls' total be 5x.
According to the question
7x=5x +8
=> 7x-5x=8
=>2x = 8
=>x=4
Therefore total strength of class=
=7(4)+5(4)
=48.
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