Riordan has twice as many stickers as George. George has 10 more stickers than Fabian. They have a total of 78 stickers.
- How many stickers does Riordan have?
- How many stickers does Fabian have?
(a)
Number of stickers that George has = 1 u
Number of stickers that Fabian has = 1 u - 10
Number of stickers that Riordan has = 2 u
Total number of stickers
= 1 u + 1 u - 10 + 2 u
= 4 u - 10
4 u - 10 = 78
4 u = 78 + 10
4 u = 88
1 u = 88 ÷ 4 = 22
Number of stickers that Riordan has
= 2 u
= 2 x 22
= 44
(b)
Number of stickers that Fabian has
= 1 u - 10
= 22 - 10
= 12
Answer(s): (a) 44; (b) 12
