Adam and Bryan have some money in the ratio of 5 : 4
After Adam spends $340,
the amount that Adam has becomes is
25 that of Bryan's.
- How much does Adam have at first?
- How much does Bryan have?
- How much less does Adam have than Bryan in the end?
|
Adam |
Bryan |
Before |
5 x 5 = 25 u |
4 x 5 = 20 u |
Change |
- $340 |
No change |
After |
2 x 4 = 8 u |
5 x 4 = 20 u |
The amount that Bryan has remains unchanged.
Make the amount the same using the LCM of 4 and 5.
LCM of 4 and 5 = 20
Amount that Adam receives
= 25 u - 8 u
= 17 u
17 u = 340
1 u = 340 ÷ 17 = 20
(a)
Amount that Adam has at first
= 25 u
= 25 x 20
= $500
(b)
Amount that Bryan has
= 20 u
= 20 x 20
= $400
(c)
Amount that Adam has less than Bryan in the end
= 20 u - 8 u
= 12 u
= 12 x 20
= $240
Answer(s): (a) $500; (b) $400; (c) $240