Jade has 2 times as many coins as Jean. Jean has
27 as many coins as Emma. If the three of them have a total of 52 coins, how many coins does Emma have?
Jade |
Jean |
Emma |
2x2 |
1x2 |
|
|
2x1 |
7x1 |
4 u |
2 u |
7 u |
The number of coins that Jean has is repeated. Make the number of coins that Jean has the same. LCM of 1 and 2 is 2.
Total number of coins that the three of them have
= 4 u + 2 u + 7 u
= 13 u
13 u = 52
1 u = 52 ÷ 13 = 4
Number of coins that Emma has
= 7 u
= 7 x 4
= 28
Answer(s): 28