Billy had
35 as many stickers as Nora. After Billy gave away 57 stickers, he had 75 less stickers than Nora. How many stickers did Nora have?
| |
Billy |
Nora |
| Before |
3 u |
5 u |
| Change |
- 57 |
|
| After |
3 u - 57 |
5 u |
Nora had 75 more stickers than Billy in the end. So, if Billy had another 75 stickers, he would have the same number of stickers as Nora.
5 u = 3 u - 57 + 75
5 u - 3 u = 75 - 57
2 u = 18
1 u = 18 ÷ 2 = 9
Number of stickers that Nora had at first
= 5 u
= 5 x 9
= 45
Answer: 45
