Asher bought 18 more stickers than Oliver and Oliver bought 11 stickers more than Ahmad. The total number of stickers Asher and Oliver bought was 6 times the number of stickers Ahmad bought.
- How many stickers does Asher need to give Oliver so that they have the same number of stickers?
- How many stickers did all three of them have altogether?
(a)
Since Asher had 18 stickers more than Oliver, Asher needed to give half of his extra stickers to Oliver.
Number of stickers that Asher needs to give to Oliver
= 18 ÷ 2
= 9
(b)
Number of stickers that Ahmad bought = 1 u
Number of stickers that Oliver bought = 1 u + 11
Number of stickers that Asher bought
= 1 u + 11 + 18
= 1 u + 29
Number of stickers that Oliver and Asher bought
= 1 u + 11 + 1 u + 29
= 2 u + 40
Total number of stickers that Asher and Oliver bought is 6 times the number that Ahmad bought.
Number of stickers that Oliver and Asher bought = 6 u
6 u = 2 u + 40
6 u - 2 u = 40
4 u = 40
1 u = 40 ÷ 4 = 10
Total number of stickers
= 6 u + 1 u
= 7 u
= 7 x 10
= 70
Answer(s): (a) 9; (b) 70
