Nora and Rachel have 416 cards altogether. Rachel has thrice as many cards as Nora. How many cards must Rachel give to Nora so that they have the same number of cards?
| |
Nora |
Rachel |
Total |
| Before |
1 u |
3 u |
416 |
| Change |
+ ? |
- ? |
|
| After |
208 |
208 |
416 |
Total number of cards that Nora and Rachel have
= 1 u + 3 u
= 4 u
4 u = 416
1 u = 416 ÷ 4 = 104
Number of cards that Nora and Rachel each has in the end
= 416 ÷ 2
= 208
Number of cards that Rachel must give to Nora
= 208 - 104
= 104
Answer(s): 104
