Fill in the blanks.
Adam and Bryan share some marbles.
When Adam gives 40 to Bryan, Adam's share decreases by 10%.
- 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 40.
- Number of marbles that Adam has at first = _____
|
Adam (%) |
Bryan (%) |
Before |
100% |
|
Change |
- 40 - 10% |
+ 40
|
After |
90% |
|
(a)
Number of marbles that Adam decreases by in percentage = 10%
(b)
Number of marbles that Adam has in the end = 100% - 10% = 90%
(c)
10% of Adam's marbles → 40
(d)
10% of Adam → 40
1% of Adam → 40 ÷ 10 = 4
100% of Bryan → 100 x 4 = 400
Number of marbles that Adam has at first = 400
Answer(s): (a) 10; (b) 90; (c) 10; (d) 400