Eric had a total of 183 yellow and white paper cranes. After giving away
34 of the yellow paper cranes and 78 white paper cranes, there was an equal number of yellow and white paper cranes left. How many yellow paper cranes did he have at first?
| |
Yellow paper cranes |
White paper cranes |
Total |
| Before |
4 u |
1 u + 78 |
183 |
| Change |
- 3 u |
- 78 |
|
| After |
1 u |
1 u |
|
Total number of paper cranes at first
= 4 u + 1 u + 78
= 5 u + 78
5 u + 78 = 183
5 u = 183 - 78
5 u = 105
1 u = 105 ÷ 5 = 21
Number of yellow paper cranes that Eric had at first
= 4 u
= 4 x 21
= 84
Answer(s): 84
