Last Friday, Michael had twice as many stamps as Sam. Today, Michael gives 24 of his stamps to his sister. Now, Sam has twice as many stamps as Michael. How many stamps does Sam have?
| |
Michael |
Sam |
| Before |
2x2 =
4 u |
1x2 =
2 u |
| Change |
- 24 |
|
| After |
1 u |
2 u |
The number of stamps that Sam had at first and in the end remains unchanged. Make the number of stamps that Sam has the same. LCM of 1 and 2 is 2.
Number of stamps that Michael gives to his sister
= 4 u - 1 u
= 3 u
3 u = 24
1 u = 24 ÷ 3 = 8
Number of stamps that Sam has
= 2 u
= 2 x 8
= 16
Answer(s): 16
