a group of friends went out to play .half of them were playing football in the group.three-fourth of the remaining were playing cricket.the rest ,9 of them were watching them play find the total no. of friends in the group
please show the working that would be really helpful
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let total no of boys: X
no. of boys playing football : x/2
no of boys playing cricket :3/4*x/2= 3x/8
according to question
x -( x/2+3x/8) =9
x- 7x/8 =9
x/8=9
x=72
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