Change percentage into units.
Fill in the blanks.
Bryan has 20% less stickers than Adam and
Charlie has 30% less stickers than Bryan.
- Who is the repeated identity? Give the answer in number. (Eg Charlie = 1; Adam = 2; Bryan = 3)
- Number of stickers that Adam has = _____ u
- Total number of stickers = _____ u
- Difference in the number of stickers between Bryan and Charlie = _____ u
(a)
Bryan has 20% less stickers than Adam.
100% - 20% = 80%
80% =
80100 =
45 Bryan has
45 as many as stickers as Adam.
Charlie has 30% less stickers than Bryan.
100% - 30% = 70%
70% =
70100 =
710 Charlie has
710 as many as stickers as Bryan.
Number of Bryan's stickers is compared to the number of Adam's stickers.
Number of Bryan's stickers is compared to the number of Charlie's stickers.
(3) Bryan is the repeated identity.
Bryan |
Adam |
Charlie |
4x5 |
5x5 |
|
10x2 |
|
7x2 |
20 u |
25 u |
14 u |
(b)
LCM of 4 and 10 = 20
Number of stickers that Adam has = 25 u
(c)
Total number of stickers that the children have
= 20 u + 25 u + 14 u
= 59 u
(d)
Difference in the number of stickers between Bryan and Charlie
= 20 u - 14 u
= 6 u
Answer(s): (a) 1; (b) 25; (c) 59; (d) 6