Cole and Valen had an equal number of books. Cole donated
15 of her books and Valen donated
13 of his books. Valen donated 14 more books than Cole. How many books did Valen have at first?
| |
Cole |
Valen |
Before
|
5x3 =
15 u |
3x5 =
15 u |
Change
|
- 1x3 =
- 3 u |
- 1x5 =
- 5 u |
After
|
4x3 =
12 u |
2x5 =
10 u |
The number of books that Cole and Valen each had at first is the same. Make the number of books that Cole and Valen had at first the same. LCM of 5 and 3 is 15.
Number of books that Valen donated more than Cole
= 5 u - 3 u
= 2 u
2 u = 14
1 u = 14 ÷ 2 = 7
Number of books that Valen had
= 15 u
= 15 x 7
= 105
Answer(s): 105
