The number of boys and girls in a class are in the ratio 7:5 the number of girls .What is the total class strength?
Answers
Answered by
1
Answer:
7x=5x+8
⇒7x−5x=8 ....[Transposing 5x to LHS]
⇒2x=8
⇒x=
2
8
=4
Therefore, number of boys =7×4=28 and number of girls =5×4=20
So, total number of children in the class =28+20=48.
Answered by
1
Step-by-step explanation:
7x+5x=12
so boys is 8 more than
7x-5x=8
2x=4
boys=7x ×4=28
girls=5x ×4=20
total=28+20=48
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