Cindy and Mary shared some pens. Cindy had 25% of what Mary had at first. Cindy then gave Mary
47 of what she had. How many more percent did Mary have than Cindy in the end? Correct the answer to 1 decimal place.
|
Cindy |
Mary |
Comparing Cindy and Mary at first |
4x7 = 28 u |
1x7 = 7 u |
Before |
7x4 = 28 u |
|
Change |
- 4x4 = - 16 u |
+ 4x4 = + 16 u |
After |
3x4 = 12 u |
23 u |
25% =
25100 =
14The number of pens that Cindy had at first is repeated. Make the number of pens that Cindy had at first the same. LCM of 4 and 7 is 28.
Number of pens that Mary had in the end
= 7 u + 16 u
= 23 u
Number of more pens that Mary had than Cindy in the end
= 23 u - 12 u
= 11 u
Number of more pens that Mary had than Cindy in the end in percent
=
1112 x 100%
≈ 91.7%
Answer(s): 91.7%