The number of boys and girls in a class are in the ratio of 5:4. If the number of boys is 9 more than the number of girls, then the number of boys is 9.
sohailanjum2018:
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number of boy = x
number of girl = y
according to question
5x = 4y ---- (1)
x = y + 9 ----(2)
solve it and you will get your answer
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