Sarah and Ivory shared a box of coins. Sarah had 69% of the total coins. if Sarah gave 38 of her coins to Ivory, both would have the same number of coins. How many coins did Sarah have?
| |
Sarah |
Ivory |
Total |
| Before |
69% |
31% |
100% |
| Change |
- 19% |
+ 19% |
|
| After |
50% |
50% |
100% |
Total number of coins that Sarah and Ivory shared = 100%
If Sarah gave 38 coins to Ivory, both would have the same number of coins.
Number of coins that each would have in the end
= 100% ÷ 2
= 50%
Number of coins that Sarah gave to Ivory
= 69% - 50%
= 19%
19% → 38
1% → 38 ÷ 19 = 2
Number of coins that Sarah had
= 69%
= 69 x 2
= 138
Answer(s): 138
