Emma has 4 times as many coins as Hazel. Hazel has
25 as many coins as Esther. If the three of them have a total of 30 coins, how many coins does Emma have?
Emma |
Hazel |
Esther |
4x2 |
1x2 |
|
|
2x1 |
5x1 |
8 u |
2 u |
5 u |
The number of coins that Hazel has is repeated. Make the number of coins that Hazel has the same. LCM of 1 and 2 is 2.
Total number of coins that the three of them have
= 8 u + 2 u + 5 u
= 15 u
15 u = 30
1 u = 30 ÷ 15 = 2
Number of coins that Emma has
= 8 u
= 8 x 2
= 16
Answer(s): 16