Sam bought 58 more stickers than Rael and Rael bought 28 stickers more than Xuan. The total number of stickers Sam and Rael bought was 4 times the number of stickers Xuan bought.
- How many stickers does Sam need to give Rael so that they have the same number of stickers?
- How many stickers did all three of them have altogether?
Sam |
Rael |
Xuan |
1 u + 28 + 58 |
1 u + 28 |
1 u |
4 u |
1 u |
(a)
Number of stickers that Sam needs to give Rael so that they have same number of stickers
= 58 ÷ 2
= 29
(b)
Total number of stickers that Sam and Rael had
= 1 u + 28 + 58 + 1 u + 28
= 1 u + 1 u + 28 + 58 + 28
= 2 u + 114
4 u = 2 u + 114
4 u - 2 u = 114
2 u = 114
1 u = 114 ÷ 2 = 57
Total number of stickers that all three of them had
= 4 u + 1 u
= 5 u
= 5 x 57
= 285
Answer(s): (a) 29; (b) 285