Pierre and Anna shared some beads equally. After Anna bought 71 beads and Pierre gave 87 beads away, they had 352 beads left. How many beads did each of them have at first?
| |
Pierre |
Anna |
Total |
| Before |
1 u |
1 u |
|
| Change |
+ 71 |
- 87 |
|
| After |
1 u + 71 |
1 u - 87 |
352 |
Pierre and Anna had the same number of beads at first.
Total number of beads in the end
= 1 u + 71 + 1 u - 87
= 1 u + 1 u + 71 - 87
= 2 u - 16
2 u - 16 = 352
2 u = 352 + 16
2 u = 368
1 u = 368 ÷ 2 = 184
Number of beads that each of them had at first
= 1 u
= 184
Answer(s): 184
