Will bought 40 more stickers than Tom and Tom bought 12 stickers more than Cathy. The total number of stickers Will and Tom bought was 4 times the number of stickers Cathy bought.
- How many stickers does Will need to give Tom so that they have the same number of stickers?
- How many stickers did all three of them have altogether?
Will |
Tom |
Cathy |
1 u + 12 + 40 |
1 u + 12 |
1 u |
4 u |
1 u |
(a)
Number of stickers that Will needs to give Tom so that they have same number of stickers
= 40 ÷ 2
= 20
(b)
Total number of stickers that Will and Tom had
= 1 u + 12 + 40 + 1 u + 12
= 1 u + 1 u + 12 + 40 + 12
= 2 u + 64
4 u = 2 u + 64
4 u - 2 u = 64
2 u = 64
1 u = 64 ÷ 2 = 32
Total number of stickers that all three of them had
= 4 u + 1 u
= 5 u
= 5 x 32
= 160
Answer(s): (a) 20; (b) 160