Zara and Diana have 282 cards altogether. Diana has twice as many cards as Zara. How many cards must Diana give to Zara so that they have the same number of cards?
| |
Zara |
Diana |
Total |
| Before |
1 u |
2 u |
282 |
| Change |
+ ? |
- ? |
|
| After |
141 |
141 |
282 |
Total number of cards that Zara and Diana have
= 1 u + 2 u
= 3 u
3 u = 282
1 u = 282 ÷ 3 = 94
Number of cards that Zara and Diana each has in the end
= 282 ÷ 2
= 141
Number of cards that Diana must give to Zara
= 141 - 94
= 47
Answer(s): 47
