Fill in the blanks.
Adam and Bryan share some marbles.
When Adam gives 90 to Bryan, Adam's share decreases by 45%.
- Number of marbles that Adam decreases by in percentage = _____%
- Number of marbles that Adam has in the end in percentage = _____ %
- _____% of Adam's marbles is the same as 90.
- Number of marbles that Adam has at first = _____
|
Adam (%) |
Bryan (%) |
Before |
100% |
|
Change |
- 90 - 45% |
+ 90
|
After |
55% |
|
(a)
Number of marbles that Adam decreases by in percentage = 45%
(b)
Number of marbles that Adam has in the end = 100% - 45% = 55%
(c)
45% of Adam's marbles → 90
(d)
45% of Adam → 90
1% of Adam → 90 ÷ 45 = 2
100% of Bryan → 100 x 2 = 200
Number of marbles that Adam has at first = 200
Answer(s): (a) 45; (b) 55; (c) 45; (d) 200