Change ratio into units.
Fill in the blanks in numbers, units or unit equations.
Bryan and Adam share a sum of money in the ratio 7 : 10.
After Bryan gives
25 of his money to Adam,
Adam has $43 more than Bryan.
- Difference in the amount between Bryan and Adam at first = _____ u
- Amount that Adam has in the end = _____ u
- Total amount that they have = _____ u
- 1 u = $_____
|
Bryan |
Adam |
Comparing between Bryan and Adam at first |
7 x 5 = 35 u |
10 x 5 = 50 u |
Before |
5 x 7 = 35 u |
|
Change |
2 x 7 = - 14 u |
+ 14 u |
After |
3 x 7 = 21 u |
64 u |
(a)
Change ratio into units.
The amount that Bryan has at first is repeated.
Amount that Bryan has at first = 35 u
Amount that Adam has at first = 50 u
Difference in the amount between Bryan and Adam at first
= 50 u - 35 u
= 15 u
(b)
Amount that Adam has in the end
= 50 u + 14 u
= 64 u
(c)
Total amount that they have
= 35 u + 50 u
= 85 u
(d)
Difference in the amount that they have in the end
= 64 u - 21 u
= 43 u
43 u = 43
1 u = 43 ÷ 43 = 1
Answer(s): (a) 15; (b) 64; (c) 85; (d) 1