Fill in the blanks.
The ratio of Bryan's stickers to Adam's stickers is 2 : 5.
After Bryan gives 55 stickers away,
The ratio of Bryan's stickers to Adam's stickers becomes 1 : 8.
- Whose number of stickers has not 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 = _____
|
Bryan |
Adam |
Before |
2 x 8 = 16 u |
5 x 8 = 40 u |
Change |
- 55 |
|
After |
1 x 5 = 5 u |
8 x 5 = 40 u |
(a)
Change ratio into units.
The number of stickers that Adam (2) has remains unchanged.
(b)
LCM of 5 and 8 = 40
Number of stickers that Adam has = 40 u
(c)
Change in the number of stickers that Bryan has
= 16 u - 5 u
= 11 u
(d)
Number of stickers that Bryan gives away = 55
11 u = 55
1 u = 55 ÷ 11 = 5
Answer(s): (a) 2; (b) 40; (c) 11; (d) 5