3 cousins share some stickers.
Adam has 70 more than Charlie.
Charlie has 3 times as many as Bryan.
Adam and Charlie have 900 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 + 70
Number of stickers that Adam and Charlie have is 900 more than Bryan.
Number
of stickers that Adam and Charlie have = 1 u + 900 3 u + 70 + 3 u = 1 u + 900 6 u - 1 u = 900 - 70 5 u = 830
1 u = 830 ÷ 5 = 166 (a)
Number of stickers that Charlie has
= 3 x 166
= 498
(b)
Number of stickers that Adam has
= 3 u + 70
= 3 × 166 + 70
= 498 + 70
= 568
(c)
Number of stickers that Adam and Bryan have
= 3 u + 70 + 1 u
= 568 + 166
= 734
Answer(s): (a) 498; (b) 568; (c) 734