Fill in the blanks.
Bryan and Adam share some beads.
When Bryan gives 30 to Adam, Bryan's share decreases by 20%.
- Number of beads that Bryan decreases by in percentage = _____%
- Number of beads that Bryan has in the end in percentage = _____ %
- _____% of Bryan's beads is the same as 30.
- Number of beads that Bryan has at first = _____
|
Bryan (%) |
Adam (%) |
Before |
100% |
|
Change |
- 30 - 20% |
+ 30
|
After |
80% |
|
(a)
Number of beads that Bryan decreases by in percentage = 20%
(b)
Number of beads that Bryan has in the end = 100% - 20% = 80%
(c)
20% of Bryan's beads → 30
(d)
20% of Bryan → 30
1% of Bryan → 30 ÷ 20 = 1.5
100% of Adam → 100 x 1.5 = 150
Number of beads that Bryan has at first = 150
Answer(s): (a) 20; (b) 80; (c) 20; (d) 150