Change ratio into units.
Fill in the blanks in numbers, units or unit equations.
Adam and Bryan share a sum of money in the ratio 2 : 5.
After Adam gives
25 of his money to Bryan,
Bryan has $46 more than Adam.
- Difference in the amount between Adam and Bryan at first = _____ u
- Amount that Bryan has in the end = _____ u
- Total amount that they have = _____ u
- 1 u = $_____
|
Adam |
Bryan |
Comparing between Adam and Bryan at first |
2 x 5 = 10 u |
5 x 5 = 25 u |
Before |
5 x 2 = 10 u |
|
Change |
2 x 2 = - 4 u |
+ 4 u |
After |
3 x 2 = 6 u |
29 u |
(a)
Change ratio into units.
The amount that Adam has at first is repeated.
Amount that Adam has at first = 10 u
Amount that Bryan has at first = 25 u
Difference in the amount between Adam and Bryan at first
= 25 u - 10 u
= 15 u
(b)
Amount that Bryan has in the end
= 25 u + 4 u
= 29 u
(c)
Total amount that they have
= 10 u + 25 u
= 35 u
(d)
Difference in the amount that they have in the end
= 29 u - 6 u
= 23 u
23 u = 46
1 u = 46 ÷ 23 = 2
Answer(s): (a) 15; (b) 29; (c) 35; (d) 2