3 children share some stickers.
Adam has 20 more than Bryan.
Bryan has 2 times as many as Charlie.
Adam and Bryan have 800 more than Charlie.
- How many stickers does Bryan have?
- How many stickers does Adam have?
- How many stickers do Adam and Charlie have?
Choose the person with least stickers to be 1 u.
Number of stickers that Charlie has = 1 u
Number of stickers that Bryan has = 2 u
Number of stickers that Adam has = 2 u + 20
Number of stickers that Adam and Bryan have is 800 more than Charlie.
Number
of stickers that Adam and Bryan have = 1 u + 800 2 u + 20 + 2 u = 1 u + 800 4 u - 1 u = 800 - 20 3 u = 780
1 u = 780 ÷ 3 = 260 (a)
Number of stickers that Bryan has
= 2 x 260
= 520
(b)
Number of stickers that Adam has
= 2 u + 20
= 2 × 260 + 20
= 520 + 20
= 540
(c)
Number of stickers that Adam and Charlie have
= 2 u + 20 + 1 u
= 540 + 260
= 800
Answer(s): (a) 520; (b) 540; (c) 800