Vanessa and Ivory shared some erasers. Vanessa had 70% of what Ivory had at first. Vanessa then gave Ivory
37 of what she had. How many less percent did Vanessa have than Ivory in the end? Correct the answer to 1 decimal place.
| |
Vanessa |
Ivory |
Comparing Vanessa
and Ivory at first |
10x7 =
70 u |
7x7 =
49 u |
| Before |
7x10 =
70 u |
|
| Change |
- 3x10 =
- 30 u |
+ 3x10 =
+ 30 u |
| After |
4x10 =
40 u |
79 u |
70% =
70100 =
710The number of erasers that Vanessa had at first is repeated. Make the number of erasers that Vanessa had at first the same. LCM of 10 and 7 is 70.
Number of erasers that Ivory had in the end
= 49 u + 30 u
= 79 u
Number of less erasers that Vanessa had than Ivory in the end
= 79 u - 40 u
= 39 u
Number of less erasers that Vanessa had than Ivory in the end in percent
=
3979 x 100%
≈ 49.4%
Answer(s): 49.4%
