Bryan and Adam have some money in the ratio of 3 : 2
After Bryan gives
12 of his money to Adam,
Bryan has $120 less than Adam in the end.
- How much does Adam have at first?
- How much does Bryan have in the end?
- How much does Bryan give to Adam?
|
Bryan |
Adam |
Total |
Before |
3 u |
2 u |
5 u |
Change |
- 1.5 u |
+ 1.5 u |
|
After |
1.5 u |
3.5 u |
5 u |
The total amount that the 2 boys have remains the same.
Amount that Bryan gives to Adam
=
12 x 3 u
= 1.5 u
Amount that Bryan has less than Adam in the end
= 3.5 u - 1.5 u
= 2 u
2 u = 120
1 u = 120 ÷ 2 = 60
(a)
Amount that Adam has at first
= 2 u
= 2 x 60
= $120
(b)
Amount that Bryan has in the end
= 1.5 u
= 1.5 x 60
= $90
(c)
Amount that Bryan gives to Adam
= 1.5 u
= 1.5 x 60
= $90
Answer(s): (a) $120; (b) $90; (c) $90