Question

1. There are 560 students in a school . If the ratio of the boys and girls is 4:3 , find their numbers .
2. The ratio of two numbers is 4:9 . When 5 is subtracted from each of them , the new ratio becomes 3:8 . Find the numbers .

Answer 1

Answer:

I think,4x+3x =560

7x=560

x=560÷7

x=80

boys-80×4=320

girls-(560 --320)=240