Question

Ten oranges are to be shared between two boys in the ratio 1:4 how many will each boy get​

Answer 1

2 and 8

Explanation:

Well. Boy A gets 1 orange, so the other must get 4. So say boy A gets 2 oranges now, so the other must get also double the amount of oranges, which is 8.

1:4

If you changed the 1 to a 2, you have x2 (you can only x or ÷, in ratio) on the other side. Whatever you do to this side, you do to the other side. So it becomes

2:8

Add the numbers together to find the total number of parts. You get 10 in this ratio, so it must be the answer.