Yesterday, Peter had 12 more pens than Jeremy. Today, Peter gave Jeremy
35 of his pens. As a result, he has half as many pens as Jeremy now. How many pens did Peter have yesterday?
| |
Peter |
Jeremy |
More |
| Before |
5 u |
1 u |
4 u |
| Change |
- 3 u |
+ 3 u |
|
| After |
2 u |
4 u |
|
Comparing Peter and
Jeremy in the end |
1
|
2
|
|
Number of pens that Jeremy has now
= 2 x 2 u
= 4 u
Number of pens that Peter had more than Jeremy yesterday
= 5 u - 1 u
= 4 u
4 u = 12
1 u = 12 ÷ 4 = 3
Number of pens that Peter had yesterday
= 5 u
= 5 x 3
= 15
Answer(s): 15
