Last Thursday, Julian had thrice as many pens as Owen. Today, Julian gives 110 of his pens to his cousin. Now, Owen has four times as many pens as Julian. How many pens does Owen have?
| |
Julian |
Owen |
| Before |
3x4 =
12 u |
1x4 =
4 u |
| Change |
- 110 |
|
| After |
1 u |
4 u |
The number of pens that Owen had at first and in the end remains unchanged. Make the number of pens that Owen has the same. LCM of 1 and 4 is 4.
Number of pens that Julian gives to his cousin
= 12 u - 1 u
= 11 u
11 u = 110
1 u = 110 ÷ 11 = 10
Number of pens that Owen has
= 4 u
= 4 x 10
= 40
Answer(s): 40
