Opal and Tiffany shared some beads. Opal had 75% of what Tiffany had at first. Opal then gave Tiffany
27 of what she had. How many less percent did Opal have than Tiffany in the end? Correct the answer to 1 decimal place.
| |
Opal |
Tiffany |
Comparing Opal
and Tiffany at first |
4x7 =
28 u |
3x7 =
21 u |
| Before |
7x4 =
28 u |
|
| Change |
- 2x4 =
- 8 u |
+ 2x4 =
+ 8 u |
| After |
5x4 =
20 u |
29 u |
75% =
75100 =
34The number of beads that Opal had at first is repeated. Make the number of beads that Opal had at first the same. LCM of 4 and 7 is 28.
Number of beads that Tiffany had in the end
= 21 u + 8 u
= 29 u
Number of less beads that Opal had than Tiffany in the end
= 29 u - 20 u
= 9 u
Number of less beads that Opal had than Tiffany in the end in percent
=
929 x 100%
≈ 31%
Answer(s): 31%
