The number of boys and girls in a class are in the ratio 7:5 . the number of boys is 8 more than the number of girls . What is the total class strength ?
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Step-by-step explanation:
Let the no. of boys and girls be 7x and 5x respectively
No. of girls 5x +8
By the problem___
7x = 5x+8
=> 7x -5x =8
=> 2x =8
=> x= 8÷2
=> x= 4
No. of boys = 7x =(7×4)=28
" " girls = 5x = (5×4) = 20
Hence the total class strength is (28+20)=48
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