3 children share some stickers.
Adam has 20 more than Charlie.
Charlie has 3 times as many as Bryan.
Adam and Charlie have 800 more than Bryan.
- How many stickers does Charlie have?
- How many stickers does Adam have?
- How many stickers do Adam and Bryan have?
Choose the person with least stickers to be 1 u.
Number of stickers that Bryan has = 1 u
Number of stickers that Charlie has = 3 u
Number of stickers that Adam has = 3 u + 20
Number of stickers that Adam and Charlie have is 800 more than Bryan.
Number
of stickers that Adam and Charlie have = 1 u + 800 3 u + 20 + 3 u = 1 u + 800 6 u - 1 u = 800 - 20 5 u = 780
1 u = 780 ÷ 5 = 156 (a)
Number of stickers that Charlie has
= 3 x 156
= 468
(b)
Number of stickers that Adam has
= 3 u + 20
= 3 × 156 + 20
= 468 + 20
= 488
(c)
Number of stickers that Adam and Bryan have
= 3 u + 20 + 1 u
= 488 + 156
= 644
Answer(s): (a) 468; (b) 488; (c) 644