Fill in the blanks.
2 boys, Bryan and Adam, share some stickers.
Adam has 30% of the total stickers.
If Adam receives extra stickers,
his number of stickers increases to 70%.
- Number of stickers that Adam has at first = _____ u
- Change in the number of stickers that Adam has = _____ u
- Number of stickers that Bryan has at first = _____ u
- Number of stickers that Bryan has in the end = _____ u
|
Bryan |
Adam |
Before |
7 x 3 = 21 u |
3 x 3 = 9 u |
Change |
No change |
+ ? |
After |
3 x 7 = 21 u |
7 x 7 = 49 u |
(a)
Change percentage into units.
30% =
30100 =
310 Fraction of the stickers that Adam has at first =
310 70% =
70100 =
710 Fraction of the stickers that Adam has in the end =
710 The number of stickers that Adam has remained unchanged.
LCM of 7 and 3 = 21
Number of stickers that Adam has at first = 9 u
(b)
Change in the number of stickers that Adam has
= 49 u - 9 u
= 40 u
(c)
Number of stickers that Bryan has = 21 u
(d)
Number of stickers that Bryan has in the end = 21 u
Answer(s): (a) 9; (b) 40; (c) 21; (d) 21