Cindy has 2 times as many erasers as Jade. Jade has
34 as many erasers as Fanny. If the three of them have a total of 78 erasers, how many erasers does Cindy have?
Cindy |
Jade |
Fanny |
2x3 |
1x3 |
|
|
3x1 |
4x1 |
6 u |
3 u |
4 u |
The number of erasers that Jade has is repeated. Make the number of erasers that Jade has the same. LCM of 1 and 3 is 3.
Total number of erasers that the three of them have
= 6 u + 3 u + 4 u
= 13 u
13 u = 78
1 u = 78 ÷ 13 = 6
Number of erasers that Cindy has
= 6 u
= 6 x 6
= 36
Answer(s): 36