Fill in the blanks.
The ratio of Adam's stickers to Bryan's stickers is 4 : 1.
After Bryan gives 95 stickers away,
The ratio of Adam's stickers to Bryan's stickers becomes 9 : 1.
- Whose number of stickers has changed? Give the answer in number. (Eg Bryan = 1; Adam = 2)
- Number of stickers that Adam has = _____ u
- Change in the number of stickers that Bryan has = _____ u
- 1 u = _____
|
Adam |
Bryan |
Before |
4 x 9 = 36 u |
1 x 9 = 9 u |
Change |
|
- 95 |
After |
9 x 4 = 36 u |
1 x 4 = 4 u |
(a)
Change ratio into units.
The number of stickers that Bryan (1) has remains unchanged.
(b)
LCM of 4 and 9 = 36
Number of stickers that Adam has = 36 u
(c)
Change in the number of stickers that Bryan has
= 9 u - 4 u
= 5 u
(d)
Number of stickers that Bryan gives away = 95
5 u = 95
1 u = 95 ÷ 5 = 19
Answer(s): (a) 1; (b) 36; (c) 5; (d) 19