Albert and Opal shared some beads equally. After Opal bought 49 beads and Albert gave 146 beads away, they had 117 beads left. How many beads did each of them have at first?
| |
Albert |
Opal |
Total |
| Before |
1 u |
1 u |
|
| Change |
+ 49 |
- 146 |
|
| After |
1 u + 49 |
1 u - 146 |
117 |
Albert and Opal had the same number of beads at first.
Total number of beads in the end
= 1 u + 49 + 1 u - 146
= 1 u + 1 u + 49 - 146
= 2 u - 97
2 u - 97 = 117
2 u = 117 + 97
2 u = 214
1 u = 214 ÷ 2 = 107
Number of beads that each of them had at first
= 1 u
= 107
Answer(s): 107
