Carl and Dylan had an equal number of books. Carl donated
17 of her books and Dylan donated
14 of his books. Dylan donated 24 more books than Carl. How many books did Dylan have at first?
| |
Carl |
Dylan |
Before
|
7x4 =
28 u |
4x7 =
28 u |
Change
|
- 1x4 =
- 4 u |
- 1x7 =
- 7 u |
After
|
6x4 =
24 u |
3x7 =
21 u |
The number of books that Carl and Dylan each had at first is the same. Make the number of books that Carl and Dylan had at first the same. LCM of 7 and 4 is 28.
Number of books that Dylan donated more than Carl
= 7 u - 4 u
= 3 u
3 u = 24
1 u = 24 ÷ 3 = 8
Number of books that Dylan had
= 28 u
= 28 x 8
= 224
Answer(s): 224
