Fill in the blanks.
Adam and Bryan share some beads.
When Adam gives 20 to Bryan, Adam's share decreases by 50%.
- Number of beads that Adam decreases by in percentage = _____%
- Number of beads that Adam has in the end in percentage = _____ %
- _____% of Adam's beads is the same as 20.
- Number of beads that Adam has at first = _____
|
Adam (%) |
Bryan (%) |
Before |
100% |
|
Change |
- 20 - 50% |
+ 20
|
After |
50% |
|
(a)
Number of beads that Adam decreases by in percentage = 50%
(b)
Number of beads that Adam has in the end = 100% - 50% = 50%
(c)
50% of Adam's beads → 20
(d)
50% of Adam → 20
1% of Adam → 20 ÷ 50 = 0.4
100% of Bryan → 100 x 0.4 = 40
Number of beads that Adam has at first = 40
Answer(s): (a) 50; (b) 50; (c) 50; (d) 40