Eric had
58 the number of stamps that George had at first. After George gave Eric 56 of his stamps, Eric had
45 the number of stamps that George had. How many stamps did Eric have at first?
| |
Eric |
George |
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 stamps that Eric and George had at first and in the end remains unchanged. Make the total number of stamps the same. LCM of 13 and 9 is 117.
Number of stamps that George gave Eric
= 52 u - 45 u
= 7 u
7 u = 56
1 u = 56 ÷ 7 = 8
Number of stamps that Eric had at first
= 45 u
= 45 x 8
= 360
Answer(s): 360
