Last Saturday, Ethan had twice as many stickers as Cole. Today, Ethan gives 50 of his stickers to his buddy. Now, Cole has thrice as many stickers as Ethan. How many stickers does Cole have?
| |
Ethan |
Cole |
| Before |
2x3 =
6 u |
1x3 =
3 u |
| Change |
- 50 |
|
| After |
1 u |
3 u |
The number of stickers that Cole had at first and in the end remains unchanged. Make the number of stickers that Cole has the same. LCM of 1 and 3 is 3.
Number of stickers that Ethan gives to his buddy
= 6 u - 1 u
= 5 u
5 u = 50
1 u = 50 ÷ 5 = 10
Number of stickers that Cole has
= 3 u
= 3 x 10
= 30
Answer(s): 30
