Joelle and Pamela shared some marbles. Joelle had 50% of what Pamela had at first. Joelle then gave Pamela
45 of what she had. How many less percent did Joelle have than Pamela in the end? Correct the answer to 1 decimal place.
|
Joelle |
Pamela |
Comparing Joelle and Pamela at first |
2x5 = 10 u |
1x5 = 5 u |
Before |
5x2 = 10 u |
|
Change |
- 4x2 = - 8 u |
+ 4x2 = + 8 u |
After |
1x2 = 2 u |
13 u |
50% =
50100 =
12The number of marbles that Joelle had at first is repeated. Make the number of marbles that Joelle had at first the same. LCM of 2 and 5 is 10.
Number of marbles that Pamela had in the end
= 5 u + 8 u
= 13 u
Number of less marbles that Joelle had than Pamela in the end
= 13 u - 2 u
= 11 u
Number of less marbles that Joelle had than Pamela in the end in percent
=
1113 x 100%
≈ 84.6%
Answer(s): 84.6%