In a class of 147 students the number of girls is 6 times the number of boys. Find the number of girls and boys in the school.
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no. of boys be 'x'
no. of girls be '6x'
then 6x=147-x
transposing x
6x+x=147
7x=147
x=21
therefore boys are 21 and girls are 21×6=126
no. of boys be 'x'
no. of girls be '6x'
then 6x=147-x
transposing x
6x+x=147
7x=147
x=21
therefore boys are 21 and girls are 21×6=126
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