Michael gave
29 of his cards to Warren,
17 of his remaining cards to Valen and
16 of the rest of his cards to Ken. He then had 15 cards left. How many cards had he at first?
| Warren |
Remaining cards |
Total |
| 2 u |
7 u |
9 u |
| |
Valen |
Rest of the cards |
|
| |
1 u |
6 u |
|
| |
|
Ken |
Left |
|
| |
|
1 u |
5 u |
|
| |
|
|
15 |
|
Number of cards that Michael had before = 9 u
Number of cards that Michael gave to Warren = 2 u
Number of cards that Michael gave to Valen = 1 u
Number of cards that Michael gave to Ken = 1 u
Number of cards that Michael had left = 5 u
5 u = 15
1 u = 15 ÷ 5 = 3
Number of cards that Michael had at first
= 9 u
= 9 u x 3
= 27
Answer(s): 27
