Fill in the blanks.
Adam has seven times as many stickers as Bryan.
Adam gave 75 to Bryan.
In the end, Adam has twice as many stickers as Bryan.
- Difference in the number of stickers between Adam and Bryan at first = _____ u
- Difference in the number of stickers between Adam and Bryan in the end = _____ u
- Difference in the number of stickers Adam has at first and in the end = _____ u
- Difference in the number of stickers Bryan has at first and in the end = _____ u
|
Adam |
Bryan |
Total |
Before |
7 x 3 = 21 u |
1 x 3 = 3 u |
8 x 3 = 24 u |
Change |
- 75 |
+ 75 |
|
After |
2 x 8 = 16 u |
1 x 8 = 8 u |
3 x 8 = 24 u |
(a)
Change X times into units.
There is an internal transfer of 75 stickers from Adam to Bryan.
The total remains unchanged.
LCM of 8 and 3 is 24.
Number of stickers that Adam gives to Bryan
= 21 u - 16 u
= 5 u
Difference in the number of stickers between Adam and Bryan at first
= 21 u - 3 u
= 18 u
(b)
Difference in the number of stickers between Adam and Bryan in the end
= 16 u - 8 u
= 8 u
(c)
Difference in the number of stickers that Adam has at first and in the end
= 21 u - 16 u
= 5 u
(d)
Difference in the number of stickers that Bryan has at first and in the end
= 8 u - 3 u
= 5 u
Answer(s): (a) 18; (b) 8; (c) 5; (d) 5