Kathy has 2 times as many coins as Cindy. Cindy has
25 as many coins as Winnie. If the three of them have a total of 55 coins, how many coins does Winnie have?
| Kathy |
Cindy |
Winnie |
| 2x2 |
1x2 |
|
| |
2x1 |
5x1 |
| 4 u |
2 u |
5 u |
The number of coins that Cindy has is repeated. Make the number of coins that Cindy has the same. LCM of 1 and 2 is 2.
Total number of coins that the three of them have
= 4 u + 2 u + 5 u
= 11 u
11 u = 55
1 u = 55 ÷ 11 = 5
Number of coins that Winnie has
= 5 u
= 5 x 5
= 25
Answer(s): 25
