Fill in the blanks.
Bryan and Adam share some marbles.
When Bryan gives 10 to Adam, Bryan's share decreases by 25%.
- Number of marbles that Bryan decreases by in percentage = _____%
- Number of marbles that Bryan has in the end in percentage = _____ %
- _____% of Bryan's marbles is the same as 10.
- Number of marbles that Bryan has at first = _____
|
Bryan (%) |
Adam (%) |
Before |
100% |
|
Change |
- 10 - 25% |
+ 10
|
After |
75% |
|
(a)
Number of marbles that Bryan decreases by in percentage = 25%
(b)
Number of marbles that Bryan has in the end = 100% - 25% = 75%
(c)
25% of Bryan's marbles → 10
(d)
25% of Bryan → 10
1% of Bryan → 10 ÷ 25 = 0.4
100% of Adam → 100 x 0.4 = 40
Number of marbles that Bryan has at first = 40
Answer(s): (a) 25; (b) 75; (c) 25; (d) 40