Lucy and Yen shared some marbles. Lucy had 75% of what Yen had at first. Lucy then gave Yen
25 of what she had. How many less percent did Lucy have than Yen in the end? Correct the answer to 1 decimal place.
| |
Lucy |
Yen |
Comparing Lucy
and Yen at first |
4x5 =
20 u |
3x5 =
15 u |
| Before |
5x4 =
20 u |
|
| Change |
- 2x4 =
- 8 u |
+ 2x4 =
+ 8 u |
| After |
3x4 =
12 u |
23 u |
75% =
75100 =
34The number of marbles that Lucy had at first is repeated. Make the number of marbles that Lucy had at first the same. LCM of 4 and 5 is 20.
Number of marbles that Yen had in the end
= 15 u + 8 u
= 23 u
Number of less marbles that Lucy had than Yen in the end
= 23 u - 12 u
= 11 u
Number of less marbles that Lucy had than Yen in the end in percent
=
1123 x 100%
≈ 47.8%
Answer(s): 47.8%
