Elyse has 4 times as many pens as Irene. Irene has
23 as many pens as Joelle. If the three of them have a total of 156 pens, how many pens does Joelle have?
| Elyse |
Irene |
Joelle |
| 4x2 |
1x2 |
|
| |
2x1 |
3x1 |
| 8 u |
2 u |
3 u |
The number of pens that Irene has is repeated. Make the number of pens that Irene has the same. LCM of 1 and 2 is 2.
Total number of pens that the three of them have
= 8 u + 2 u + 3 u
= 13 u
13 u = 156
1 u = 156 ÷ 13 = 12
Number of pens that Joelle has
= 3 u
= 3 x 12
= 36
Answer(s): 36
