Nicole and Opal have 492 buttons altogether. Opal has thrice as many buttons as Nicole. How many buttons must Opal give to Nicole so that they have the same number of buttons?
| |
Nicole |
Opal |
Total |
| Before |
1 u |
3 u |
492 |
| Change |
+ ? |
- ? |
|
| After |
246 |
246 |
492 |
Total number of buttons that Nicole and Opal have
= 1 u + 3 u
= 4 u
4 u = 492
1 u = 492 ÷ 4 = 123
Number of buttons that Nicole and Opal each has in the end
= 492 ÷ 2
= 246
Number of buttons that Opal must give to Nicole
= 246 - 123
= 123
Answer(s): 123
