Perry and Shiyun shared some beads equally. After Shiyun bought 88 beads and Perry gave 154 beads away, they had 306 beads left. How many beads did each of them have at first?
| |
Perry |
Shiyun |
Total |
| Before |
1 u |
1 u |
|
| Change |
+ 88 |
- 154 |
|
| After |
1 u + 88 |
1 u - 154 |
306 |
Perry and Shiyun had the same number of beads at first.
Total number of beads in the end
= 1 u + 88 + 1 u - 154
= 1 u + 1 u + 88 - 154
= 2 u - 66
2 u - 66 = 306
2 u = 306 + 66
2 u = 372
1 u = 372 ÷ 2 = 186
Number of beads that each of them had at first
= 1 u
= 186
Answer(s): 186
