Ian and Asher had an equal number of books. Ian donated
19 of her books and Asher donated
17 of his books. Asher donated 4 more books than Ian. How many books did Asher have at first?
| |
Ian |
Asher |
Before
|
9x7 =
63 u |
7x9 =
63 u |
Change
|
- 1x7 =
- 7 u |
- 1x9 =
- 9 u |
After
|
8x7 =
56 u |
6x9 =
54 u |
The number of books that Ian and Asher each had at first is the same. Make the number of books that Ian and Asher had at first the same. LCM of 9 and 7 is 63.
Number of books that Asher donated more than Ian
= 9 u - 7 u
= 2 u
2 u = 4
1 u = 4 ÷ 2 = 2
Number of books that Asher had
= 63 u
= 63 x 2
= 126
Answer(s): 126
