Betty and Winnie shared a box of cards. Betty had 78% of the total cards. if Betty gave 224 of her cards to Winnie, both would have the same number of cards. How many cards did Betty have?
| |
Betty |
Winnie |
Total |
| Before |
78% |
22% |
100% |
| Change |
- 28% |
+ 28% |
|
| After |
50% |
50% |
100% |
Total number of cards that Betty and Winnie shared = 100%
If Betty gave 224 cards to Winnie, both would have the same number of cards.
Number of cards that each would have in the end
= 100% ÷ 2
= 50%
Number of cards that Betty gave to Winnie
= 78% - 50%
= 28%
28% → 224
1% → 224 ÷ 28 = 8
Number of cards that Betty had
= 78%
= 78 x 8
= 624
Answer(s): 624
