Paul and George had an equal number of books. Paul donated
17 of her books and George donated
13 of his books. George donated 32 more books than Paul. How many books did George have at first?
| |
Paul |
George |
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 Paul and George each had at first is the same. Make the number of books that Paul and George had at first the same. LCM of 7 and 3 is 21.
Number of books that George donated more than Paul
= 7 u - 3 u
= 4 u
4 u = 32
1 u = 32 ÷ 4 = 8
Number of books that George had
= 21 u
= 21 x 8
= 168
Answer(s): 168
