Fill in the blanks.
2 boys, Bryan and Adam, share some stickers.
Adam has 20% of the total stickers.
If Adam receives extra stickers,
his number of stickers increases to 30%.
- 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 |
4 x 7 = 28 u |
1 x 7 = 7 u |
Change |
No change |
+ ? |
After |
7 x 4 = 28 u |
3 x 4 = 12 u |
(a)
Change percentage into units.
20% =
20100 =
15 Fraction of the stickers that Adam has at first =
15 30% =
30100 =
310 Fraction of the stickers that Adam has in the end =
310 The number of stickers that Adam has remained unchanged.
LCM of 4 and 7 = 28
Number of stickers that Adam has at first = 7 u
(b)
Change in the number of stickers that Adam has
= 12 u - 7 u
= 5 u
(c)
Number of stickers that Bryan has = 28 u
(d)
Number of stickers that Bryan has in the end = 28 u
Answer(s): (a) 7; (b) 5; (c) 28; (d) 28