Joelle and Tammy shared some cards. Joelle had 80% of what Tammy had at first. Joelle then gave Tammy
27 of what she had. How many less percent did Joelle have than Tammy in the end? Correct the answer to 1 decimal place.
| |
Joelle |
Tammy |
Comparing Joelle
and Tammy at first |
5x7 =
35 u |
4x7 =
28 u |
| Before |
7x5 =
35 u |
|
| Change |
- 2x5 =
- 10 u |
+ 2x5 =
+ 10 u |
| After |
5x5 =
25 u |
38 u |
80% =
80100 =
45The number of cards that Joelle had at first is repeated. Make the number of cards that Joelle had at first the same. LCM of 5 and 7 is 35.
Number of cards that Tammy had in the end
= 28 u + 10 u
= 38 u
Number of less cards that Joelle had than Tammy in the end
= 38 u - 25 u
= 13 u
Number of less cards that Joelle had than Tammy in the end in percent
=
1338 x 100%
≈ 34.2%
Answer(s): 34.2%
