Harry had
58 the number of buttons that Glen had at first. After Glen gave Harry 56 of his buttons, Harry had
45 the number of buttons that Glen had. How many buttons did Harry have at first?
|
Harry |
Glen |
Total |
Before |
5x9 = 45 u |
8x9 = 72 u |
13x9 = 117 u |
Change |
+ 7 u |
- 7 u |
|
After |
4x13 = 52 u |
5x13 = 65 u |
9x13 = 117 u |
The total number of buttons that Harry and Glen had at first and in the end remains unchanged. Make the total number of buttons the same. LCM of 13 and 9 is 117.
Number of buttons that Glen gave Harry
= 52 u - 45 u
= 7 u
7 u = 56
1 u = 56 ÷ 7 = 8
Number of buttons that Harry had at first
= 45 u
= 45 x 8
= 360
Answer(s): 360