Question

the ratio of the number of boys and girls in the school is 7 ratio 5 of the percentage increase in the number of boys and girls be 20% and 10% respectively what will be the new ratio

Answer 1

Given: Ratio of boys to girls is 7:5 and increase percent of boys is 20% while that of girls is 10%.

To find: The new ratio

Answer:

Let the original ratio's values be 7x and 5x.

Boys increase percent is 20% (given). So, 7x + 20/100.

Girls increase percent is 10% (given). So, 5x + 10/100.

Therefore new ratio: (7x + 20/100):(5x + 10/100) = (7x/5):(5x/10)

Hope it helps :)