Irene and Tammy shared some erasers. Irene had 60% of what Tammy had at first. Irene then gave Tammy
47 of what she had. How many less percent did Irene have than Tammy in the end? Correct the answer to 1 decimal place.
| |
Irene |
Tammy |
Comparing Irene
and Tammy at first |
5x7 =
35 u |
3x7 =
21 u |
| Before |
7x5 =
35 u |
|
| Change |
- 4x5 =
- 20 u |
+ 4x5 =
+ 20 u |
| After |
3x5 =
15 u |
41 u |
60% =
60100 =
35The number of erasers that Irene had at first is repeated. Make the number of erasers that Irene had at first the same. LCM of 5 and 7 is 35.
Number of erasers that Tammy had in the end
= 21 u + 20 u
= 41 u
Number of less erasers that Irene had than Tammy in the end
= 41 u - 15 u
= 26 u
Number of less erasers that Irene had than Tammy in the end in percent
=
2641 x 100%
≈ 63.4%
Answer(s): 63.4%
