The number of boys and girls in a class are in the ratio 7:5. The number of boys is
more than the number of girls. What is the total class strength?
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Answer:
hey Jahnvi, here is your answer....
let Boys = 7x
Girls = 5x
Boys, 3 times more then boys,
therefore, boys = 7x+ 3
7x +5x = 3
12 x = 3
x = 3
12
x = 4
boys = 7x
= 7 x 4
= 28 + 3
= 31
Girls = 5x
= 5x4
= 20
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