Last Monday, Riordan had twice as many stickers as Japheth. Today, Riordan gives 36 of his stickers to his brother. Now, Japheth has twice as many stickers as Riordan. How many stickers does Japheth have?
| |
Riordan |
Japheth |
| Before |
2x2 =
4 u |
1x2 =
2 u |
| Change |
- 36 |
|
| After |
1 u |
2 u |
The number of stickers that Japheth had at first and in the end remains unchanged. Make the number of stickers that Japheth has the same. LCM of 1 and 2 is 2.
Number of stickers that Riordan gives to his brother
= 4 u - 1 u
= 3 u
3 u = 36
1 u = 36 ÷ 3 = 12
Number of stickers that Japheth has
= 2 u
= 2 x 12
= 24
Answer(s): 24
