Wesley had 6 times as many stickers as Vincent at first. Then each of them bought an equal number of new stickers. In the end, Vincent had 60 stickers and Wesley had 3 times as many stickers as Vincent. How many stickers did both of them buy altogether?
| |
Wesley |
Vincent |
Difference |
| Before |
6x2 =
12 u |
1x2 =
2 u |
5x2 =
10 u |
| Change |
+ ? |
+ ? |
|
| After |
3x5 =
15 u |
1x5 =
5 u |
2x5 =
10 u |
The difference in the number of stickers at first and in the end remains unchanged. Make the difference in the number of stickers at first and in the end the same. LCM of 5 and 2 is 10.
Number of stickers that Vincent had in the end = 5 u
5 u = 60
1 u = 60 ÷ 5 = 12
Number of stickers that Wesley bought
= 15 u - 12 u
= 3 u
Number of stickers that both of them bought altogether
= 2 x 3 u
= 6 u
= 6 x 12
= 72
Answer(s): 72
