Betty and Gillian shared some pens. Betty had 25% of what Gillian had at first. Betty then gave Gillian
37 of what she had. How many less percent did Betty have than Gillian in the end? Correct the answer to 1 decimal place.
|
Betty |
Gillian |
Comparing Betty and Gillian at first |
4x7 = 28 u |
1x7 = 7 u |
Before |
7x4 = 28 u |
|
Change |
- 3x4 = - 12 u |
+ 3x4 = + 12 u |
After |
4x4 = 16 u |
19 u |
25% =
25100 =
14The number of pens that Betty had at first is repeated. Make the number of pens that Betty had at first the same. LCM of 4 and 7 is 28.
Number of pens that Gillian had in the end
= 7 u + 12 u
= 19 u
Number of less pens that Betty had than Gillian in the end
= 19 u - 16 u
= 3 u
Number of less pens that Betty had than Gillian in the end in percent
=
319 x 100%
≈ 15.8%
Answer(s): 15.8%