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Question
if the ratio of boys and girls is 4:5,if 200 girls is taken out ratio becomes 6:7,find the no of girls??????
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Answer
Given:
b:g= 4:5................(1)
if 200 girls are taken out then ratio becomes 6:7
means
b:(g-200)= 6:7,.....................(2)
from eqn 1 b= 4/5 g
putting value b= 4/5 g in eqn 2
we get g= 3000
HENCE NO OF GIRLS= 3000(ANSWER)
