Charlie gave
19 of his pens to Simon,
38 of his remaining pens to Reggie and
15 of the rest of his pens to Xavier. He then had 20 pens left. How many pens had he at first?
| Simon |
Remaining pens |
Total |
| 1 u |
8 u |
9 u |
| |
Reggie |
Rest of the pens |
|
| |
3 u |
5 u |
|
| |
|
Xavier |
Left |
|
| |
|
1 u |
4 u |
|
| |
|
|
20 |
|
Number of pens that Charlie had before = 9 u
Number of pens that Charlie gave to Simon = 1 u
Number of pens that Charlie gave to Reggie = 3 u
Number of pens that Charlie gave to Xavier = 1 u
Number of pens that Charlie had left = 4 u
4 u = 20
1 u = 20 ÷ 4 = 5
Number of pens that Charlie had at first
= 9 u
= 9 u x 5
= 45
Answer(s): 45
