Fill in the blanks.
Adam has 20% more stickers than Charlie and 25% fewer stickers than Bryan.

1. Who is the repeated identity? Give the answer in number.  (Eg Adam = 1; Charlie = 2; Bryan = 3)
2. Number of stickers that Bryan has = _____ u
3. Total number of stickers = _____ u
4. The difference in the number of stickers between Bryan and Charlie = _____ u

(a)
Change percentage into units.

Adam has 20% more stickers than Charlie.

100% + 20% = 120%
120% = ¹²⁰₁₀₀ = ⁶₅

Adam has ⁶₅ as many as Charlie.

Adam has 25% fewer stickers than Bryan.

100% - 25% = 75%
75% = ⁷⁵₁₀₀ = ³₄

Adam has ³₄ as many as Bryan.

Number of Adam's stickers is compared to the number of Charlie's stickers.
Number of Adam's stickers is compared to the number of Bryan's stickers.

(1) Adam is the repeated identity.

Adam	Charlie	Bryan
6x1	5x1
3x2		4x2
6 u	5 u	8 u

(b)
Adam is the repeated identity.
LCM of 6 and 3 = 6

Number of stickers that Bryan has = 8 u

(c)
Total number of stickers that the children have
= 6 u + 5 u + 8 u
= 19 u

(d)
Difference in the number of stickers between Bryan and Charlie
= 8 u - 5 u
= 3 u

Answer(s): (a) 1; (b) 8; (c) 19; (d) 3