PSLE Tommy, Vincent and Jenson had 162 stickers altogether. Tommy gave
320 of his stickers to Vincent and
25 of his stickers to Jenson. After that, all three boys had the same number of stickers. What was the difference in the number of stickers between Vincent and Jenson at first?
|
Tommy |
Vincent |
Jenson |
Total |
Before |
20 u |
6 u |
1 u |
27 u |
Change 1 |
- 3 u |
+ 3 u |
|
|
Change 2 |
- 8 u |
|
+ 8 u |
|
After |
9 u |
9 u |
9 u |
27 u |
Comparing between Tommy, Vincent and Jenson in the end |
1x9 = 9 u |
1x9 = 9 u |
1x9 = 9 u |
3x9 = 27 u |
Fraction of stickers that Tommy had left
= 1 -
320 -
25 = 1 -
320 -
820 =
920 Total number of stickers
= 3 x 9 u
= 27 u
27 u = 162
1 u = 162 ÷ 27 = 6
Difference in the number of stickers between Vincent and Jenson at first
= 6 u - 1 u
= 5 u
= 5 x 6
= 30
Answer(s): 30