Michael had
35 the number of stamps that Vincent had at first. After Vincent gave Michael 35 of his stamps, Michael had
45 the number of stamps that Vincent had. How many stamps did Michael have at first?
| |
Michael |
Vincent |
Total |
| Before |
3x9 =
27 u |
5x9 =
45 u |
8x9 =
72 u |
| Change |
+ 5 u |
- 5 u |
|
| After |
4x8 =
32 u |
5x8 =
40 u |
9x8 =
72 u |
The total number of stamps that Michael and Vincent had at first and in the end remains unchanged. Make the total number of stamps the same. LCM of 8 and 9 is 72.
Number of stamps that Vincent gave Michael
= 32 u - 27 u
= 5 u
5 u = 35
1 u = 35 ÷ 5 = 7
Number of stamps that Michael had at first
= 27 u
= 27 x 7
= 189
Answer(s): 189
