Change percentage into units.
Fill in the blanks.
Charlie has 50% less stickers than Adam and
Bryan has 30% less stickers than Charlie.
- Who is the repeated identity? Give the answer in number. (Eg Bryan = 1; Adam = 2; Charlie = 3)
- Number of stickers that Adam has = _____ u
- Total number of stickers = _____ u
- Difference in the number of stickers between Charlie and Bryan = _____ u
(a)
Charlie has 50% less stickers than Adam.
100% - 50% = 50%
50% =
50100 =
12 Charlie has
12 as many as stickers as Adam.
Bryan has 30% less stickers than Charlie.
100% - 30% = 70%
70% =
70100 =
710 Bryan has
710 as many as stickers as Charlie.
Number of Charlie's stickers is compared to the number of Adam's stickers.
Number of Charlie's stickers is compared to the number of Bryan's stickers.
(3) Charlie is the repeated identity.
Charlie |
Adam |
Bryan |
1x10 |
2x10 |
|
10x1 |
|
7x1 |
10 u |
20 u |
7 u |
(b)
LCM of 1 and 10 = 10
Number of stickers that Adam has = 20 u
(c)
Total number of stickers that the children have
= 10 u + 20 u + 7 u
= 37 u
(d)
Difference in the number of stickers between Charlie and Bryan
= 10 u - 7 u
= 3 u
Answer(s): (a) 1; (b) 20; (c) 37; (d) 3