Sabrina and Hazel shared some erasers. Sabrina had 70% of what Hazel had at first. Sabrina then gave Hazel
27 of what she had. How many less percent did Sabrina have than Hazel in the end? Correct the answer to 1 decimal place.
| |
Sabrina |
Hazel |
Comparing Sabrina
and Hazel at first |
10x7 =
70 u |
7x7 =
49 u |
| Before |
7x10 =
70 u |
|
| Change |
- 2x10 =
- 20 u |
+ 2x10 =
+ 20 u |
| After |
5x10 =
50 u |
69 u |
70% =
70100 =
710The number of erasers that Sabrina had at first is repeated. Make the number of erasers that Sabrina had at first the same. LCM of 10 and 7 is 70.
Number of erasers that Hazel had in the end
= 49 u + 20 u
= 69 u
Number of less erasers that Sabrina had than Hazel in the end
= 69 u - 50 u
= 19 u
Number of less erasers that Sabrina had than Hazel in the end in percent
=
1969 x 100%
≈ 27.5%
Answer(s): 27.5%
