3:4.
(b) The ratio of boys to girls in a school is 3:4
There are 120 more girls than boys.
How many students are in the school?
Answers
Answered by
0
Answer:
3:4 is the same as 3x:4x where 3x is the # of boys: 4x is the # of girls
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Equation:
4x = 3x+120
x = 120
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Ans: 3x+4x = 7x = 7*120 = 840
hope it helps you
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Answered by
1
No of boys = x
No of girls = 120+x
Then,
x/120+x =3/4
x = 360
Total no of boys = 360
Total no of girls = 360+ 120
= 480
Therefore, Total no of student in school = 840
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