Barbara has 3 times as many pens as Lynn. Lynn has
58 as many pens as Gillian. If the three of them have a total of 336 pens, how many pens does Barbara have?
| Barbara |
Lynn |
Gillian |
| 3x5 |
1x5 |
|
| |
5x1 |
8x1 |
| 15 u |
5 u |
8 u |
The number of pens that Lynn has is repeated. Make the number of pens that Lynn has the same. LCM of 1 and 5 is 5.
Total number of pens that the three of them have
= 15 u + 5 u + 8 u
= 28 u
28 u = 336
1 u = 336 ÷ 28 = 12
Number of pens that Barbara has
= 15 u
= 15 x 12
= 180
Answer(s): 180
