1.

the number of boys and girls in class are 9:5.the number of girls is 12less then The number of boys.what is the total strength of the class.

Answer»

LET no. Of boys be X ,So no. of GIRLS is(x-12)
According to question
x/x-12=9/5
On SOLVING, we get x=27
No. of boys=x=27
No. of girls=(x-12)=15


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