Fill in the blanks.
Bryan has seven times as many stickers as Adam.
Both receive 20 stickers each.
In the end, Bryan has twice as many stickers as Adam.
- Difference in the number of stickers between Bryan and Adam = _____ u
- Number of stickers that Bryan and Adam have in the end = _____ u
- Number of stickers that Bryan receives = _____ u
- 1 u = _____
|
Bryan |
Adam |
Difference |
Before |
7 u |
1 u |
6 u |
Change |
+ ? |
+ ? |
|
After |
2 x 6 = 12 u |
1 x 6 = 6 u |
1 x 6 = 6 u |
(a)
The difference in the number of stickers that Bryan and Adam have at first and in the end is the same.
LCM of 1 and 6 is 6.
Difference in the number of stickers between Bryan and Adam
= 7 u - 1 u
= 6 u
(b)
Number of stickers that Bryan and Adam had in the end
= 12 u + 6 u
= 18 u
(c)
Number of stickers that Bryan receives
= 12 u - 7 u
= 5 u
(d)
5 u = 20
1 u = 20 ÷ 5 = 4
Answer(s): (a) 6 ; (b) 18; (c) 5 ; (d) 4