Fill in the blanks.
Charlie has 40% more stickers than Adam and 20% fewer stickers than Bryan.
- Who is the repeated identity? Give the answer in number. (Eg Adam = 1; Charlie = 2; Bryan = 3)
- Number of stickers that Adam has = _____ u
- Total number of stickers = _____ u
- The difference in the number of stickers between Bryan and Charlie = _____ u
(a)
Change percentage into units.
Charlie has 40% more stickers than Adam.
100% + 40% = 140%
140% =
140100 =
75 Charlie has
75 as many as Adam.
Charlie has 20% fewer stickers than Bryan.
100% - 20% = 80%
80% =
80100 =
45 Charlie has
45 as many as Bryan.
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.
(2) Charlie is the repeated identity.
Charlie |
Adam |
Bryan |
7x4 |
5x4 |
|
4x7 |
|
5x7 |
28 u |
20 u |
35 u |
(b)
Charlie is the repeated identity.
LCM of 7 and 4 = 28
Number of stickers that Adam has = 20 u
(c)
Total number of stickers that the children have
= 28 u + 20 u + 35 u
= 83 u
(d)
Difference in the number of stickers between Bryan and Charlie
= 35 u - 28 u
= 7 u
Answer(s): (a) 2; (b) 20; (c) 83; (d) 7