Sarah has 2 times as many pens as Roshel. Roshel has
67 as many pens as Joelle. If the three of them have a total of 250 pens, how many pens does Joelle have?
Sarah |
Roshel |
Joelle |
2x6 |
1x6 |
|
|
6x1 |
7x1 |
12 u |
6 u |
7 u |
The number of pens that Roshel has is repeated. Make the number of pens that Roshel has the same. LCM of 1 and 6 is 6.
Total number of pens that the three of them have
= 12 u + 6 u + 7 u
= 25 u
25 u = 250
1 u = 250 ÷ 25 = 10
Number of pens that Joelle has
= 7 u
= 7 x 10
= 70
Answer(s): 70