Two numbers are in the ratio 7: 8. find the numbers if their sum is 45.

Let us assume the common ratio to be = x
Then
7x + 8x = 45
15x = 45
x = 45/15
  = 3
Then the two numbers are
7x :8x
7 * 3:8 * 3
21: 24
Then the two numbers are 21 and 24. I hope the procedure in which the problem is done is clear to you. This is a simple but effective way of solving such problems. In future this method will make you confident about solving these kind of problems.

First you’d have to convert the kg to lb. so 2.2kg to lb is 4.9lb.
So 96 divided by 4.9 is 19.6.