Fill in the blanks.
Adam and Bryan share some marbles.
When Adam gives 30 to Bryan, Adam's share decreases by 12%.
- 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 30.
- Number of marbles that Adam has at first = _____
|
Adam (%) |
Bryan (%) |
Before |
100% |
|
Change |
- 30 - 12% |
+ 30
|
After |
88% |
|
(a)
Number of marbles that Adam decreases by in percentage = 12%
(b)
Number of marbles that Adam has in the end = 100% - 12% = 88%
(c)
12% of Adam's marbles → 30
(d)
12% of Adam → 30
1% of Adam → 30 ÷ 12 = 2.5
100% of Bryan → 100 x 2.5 = 250
Number of marbles that Adam has at first = 250
Answer(s): (a) 12; (b) 88; (c) 12; (d) 250