Dylan and Henry had an equal number of books. Dylan donated
17 of her books and Henry donated
13 of his books. Henry donated 32 more books than Dylan. How many books did Henry have at first?
| |
Dylan |
Henry |
Before
|
7x3 =
21 u |
3x7 =
21 u |
Change
|
- 1x3 =
- 3 u |
- 1x7 =
- 7 u |
After
|
6x3 =
18 u |
2x7 =
14 u |
The number of books that Dylan and Henry each had at first is the same. Make the number of books that Dylan and Henry had at first the same. LCM of 7 and 3 is 21.
Number of books that Henry donated more than Dylan
= 7 u - 3 u
= 4 u
4 u = 32
1 u = 32 ÷ 4 = 8
Number of books that Henry had
= 21 u
= 21 x 8
= 168
Answer(s): 168
