Fill in the blanks.
Bryan has 25% more stickers than Charlie and 20% fewer stickers than Adam.
- 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
- The difference in the number of stickers between Adam and Charlie = _____ u
(a)
Change percentage into units.
Bryan has 25% more stickers than Charlie.
100% + 25% = 125%
125% =
125100 =
54 Bryan has
54 as many as Charlie.
Bryan has 20% fewer stickers than Adam.
100% - 20% = 80%
80% =
80100 =
45 Bryan has
45 as many as Adam.
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 |
5x4 |
4x4 |
|
4x5 |
|
5x5 |
20 u |
16 u |
25 u |
(b)
Bryan is the repeated identity.
LCM of 5 and 4 = 20
Number of stickers that Adam has = 25 u
(c)
Total number of stickers that the children have
= 20 u + 16 u + 25 u
= 61 u
(d)
Difference in the number of stickers between Adam and Charlie
= 25 u - 16 u
= 9 u
Answer(s): (a) 1; (b) 25; (c) 61; (d) 9