Rachel and Emma have 296 buttons altogether. Emma has thrice as many buttons as Rachel. How many buttons must Emma give to Rachel so that they have the same number of buttons?
| |
Rachel |
Emma |
Total |
| Before |
1 u |
3 u |
296 |
| Change |
+ ? |
- ? |
|
| After |
148 |
148 |
296 |
Total number of buttons that Rachel and Emma have
= 1 u + 3 u
= 4 u
4 u = 296
1 u = 296 ÷ 4 = 74
Number of buttons that Rachel and Emma each has in the end
= 296 ÷ 2
= 148
Number of buttons that Emma must give to Rachel
= 148 - 74
= 74
Answer(s): 74
