Fill in the blanks in units (Eg 1 u) or unit equations (Eg 1 u + 2).
Adam and Bryan have some stickers.
Bryan uses
57 of his stickers and
Adam buys 48 more stickers.
In the end, the number of stickers that Adam and Bryan have is in the ratio of 6 : 7.
- Number of stickers that Bryan has in the end = _____
- Number of stickers that Bryan has at first = _____
- Number of stickers that Adam has at first = _____
- Total number of stickers that they have at first = _____
|
Adam |
Bryan |
Before |
12 u - 48 |
7 x 7 = 49 u |
Change |
+ 48 |
- 5 x 7 = - 35 u |
After |
12 u |
2 x 7 = 14 u |
Comparing Adam and Bryan in the end |
6 x 2 = 12 u |
7 x 2 = 14 u |
(a)
The number of stickers that Bryan has in the end is repeated. Use LCM to make them the same.
LCM of 2 and 7 = 14
Number of stickers that Bryan has in the end = 14 u
(b)
Number of stickers that Bryan has at first = 49 u
(c)
Number of stickers that Adam has at first
= 12 u - 48
(d)
Total number of stickers that they have at first
= 12 u - 48 + 49 u
= 12 u + 49 u - 48
= 61 u - 48
Answer(s): (a) 14 u; (b) 49 u; (c) 12 u - 48; (d) 61 u - 48