Fill in the blanks.
Adam has 50% more stickers than Bryan and 20% fewer stickers than Charlie.

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

(a)
Change percentage into units.

Adam has 50% more stickers than Bryan.

100% + 50% = 150%
150% = ¹⁵⁰₁₀₀ = ³₂

Adam has ³₂ as many as Bryan.

Adam has 20% fewer stickers than Charlie.

100% - 20% = 80%
80% = ⁸⁰₁₀₀ = ⁴₅

Adam has ⁴₅ as many as Charlie.

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

(2) Adam is the repeated identity.

Adam	Bryan	Charlie
3x4	2x4
4x3		5x3
12 u	8 u	15 u

(b)
Adam is the repeated identity.
LCM of 3 and 4 = 12

Number of stickers that Bryan has = 8 u

(c)
Total number of stickers that the children have
= 12 u + 8 u + 15 u
= 35 u

(d)
Difference in the number of stickers between Charlie and Adam
= 15 u - 12 u
= 3 u

Answer(s): (a) 2; (b) 8; (c) 35; (d) 3