Neave and Harry had an equal number of books. Neave donated
18 of her books and Harry donated
15 of his books. Harry donated 15 more books than Neave. How many books did Harry have at first?
| |
Neave |
Harry |
Before
|
8x5 =
40 u |
5x8 =
40 u |
Change
|
- 1x5 =
- 5 u |
- 1x8 =
- 8 u |
After
|
7x5 =
35 u |
4x8 =
32 u |
The number of books that Neave and Harry each had at first is the same. Make the number of books that Neave and Harry had at first the same. LCM of 8 and 5 is 40.
Number of books that Harry donated more than Neave
= 8 u - 5 u
= 3 u
3 u = 15
1 u = 15 ÷ 3 = 5
Number of books that Harry had
= 40 u
= 40 x 5
= 200
Answer(s): 200
