Fill in the blanks.
Charlie has 50% more stickers than Bryan and 30% fewer stickers than Adam.

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

(a)
Change percentage into units.

Charlie has 50% more stickers than Bryan.

100% + 50% = 150%
150% = ¹⁵⁰₁₀₀ = ³₂

Charlie has ³₂ as many as Bryan.

Charlie has 30% fewer stickers than Adam.

100% - 30% = 70%
70% = ⁷⁰₁₀₀ = ⁷₁₀

Charlie has ⁷₁₀ as many as Adam.

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

(2) Charlie is the repeated identity.

Charlie	Bryan	Adam
3x7	2x7
7x3		10x3
21 u	14 u	30 u

(b)
Charlie is the repeated identity.
LCM of 3 and 7 = 21

Number of stickers that Bryan has = 14 u

(c)
Total number of stickers that the children have
= 21 u + 14 u + 30 u
= 65 u

(d)
Difference in the number of stickers between Adam and Charlie
= 30 u - 21 u
= 9 u

Answer(s): (a) 2; (b) 14; (c) 65; (d) 9