Fill in the blanks.
Bryan has 20% less stickers than Charlie and
Adam has 50% less stickers than Bryan.
- Who is the repeated identity? Give the answer in number. (Eg Bryan = 1; Charlie = 2; Adam = 3)
- Number of stickers that Adam has = _____ u
- Total number of stickers = _____ u
- Difference in the number of stickers between Charlie and Adam = _____ u
(a)
Change percentage into units.
Bryan has 20% less stickers than Charlie.
100% - 20% = 80%
80% =
80100 =
45 Bryan has
45 as many as stickers as Charlie.
Adam has 50% less stickers than Bryan.
100% - 50% = 50%
50% =
50100 =
12 Adam has
12 as many as stickers as Bryan.
Number of Bryan's stickers is compared to the number of Charlie's stickers.
Number of Bryan's stickers is compared to the number of Adam's stickers.
(1) Bryan is the repeated identity.
Bryan |
Charlie |
Adam |
4x1 |
5x1 |
|
2x2 |
|
1x2 |
4 u |
5 u |
2 u |
(b)
LCM of 4 and 2 = 4
Number of stickers that Adam has = 2 u
(c)
Total number of stickers that the children have
= 4 u + 5 u + 2 u
= 11 u
(d)
Difference in the number of stickers between Charlie and Adam
= 5 u - 2 u
= 3 u
Answer(s): (a) 1; (b) 2; (c) 11; (d) 3