Change percentage into units.
Fill in the blanks.
Bryan has 30% less stickers than Charlie and
Adam has 50% less stickers than Bryan.
- Who is the repeated identity? Give the answer in number. (Eg Adam = 1; Charlie = 2; Bryan = 3)
- Number of stickers that Charlie has = _____ u
- Total number of stickers = _____ u
- Difference in the number of stickers between Bryan and Adam = _____ u
(a)
Bryan has 30% less stickers than Charlie.
100% - 30% = 70%
70% =
70100 =
710 Bryan has
710 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.
(3) Bryan is the repeated identity.
Bryan |
Charlie |
Adam |
7x2 |
10x2 |
|
2x7 |
|
1x7 |
14 u |
20 u |
7 u |
(b)
LCM of 7 and 2 = 14
Number of stickers that Charlie has = 20 u
(c)
Total number of stickers that the children have
= 14 u + 20 u + 7 u
= 41 u
(d)
Difference in the number of stickers between Bryan and Adam
= 14 u - 7 u
= 7 u
Answer(s): (a) 1; (b) 20; (c) 41; (d) 7