Joelle, Tiffany, Jack and Pamela shared some pens. Joelle and Tiffany took
16 of the total number of pens while Jack and Pamela took the rest. Tiffany had twice as many pens as Joelle and Pamela had 12 pens. Given that Pamela had twice as many pens as Tiffany, how many pens were there altogether?
Joelle |
Tiffany |
Jack |
Pamela |
Total |
1x3 |
5x3 |
6x3 |
1 |
2 |
|
|
|
|
1x2 |
|
2x2 |
|
1 u |
2 u |
11 u |
4 u |
18 u |
Number of pens that Tiffany had is repeated. Make the number of pens that Tiffany had the same. LCM of 2 and 1 is 2.
Number of pens that Pamela had = 4 u
4 u = 12
1 u = 12 ÷ 4 = 3
Total number of pens
= 18 u
= 18 x 3
= 54
Answer(s): 54