Shannon had 90 markers.
23 of them were white markers and the rest were purple markers. After she had given away some white markers, the ratio of the number of white markers to the number of purple markers became 3 : 5. How many markers did she have in the end?
| |
White |
Purple |
Total |
| Before |
2x5 =
10 u |
1x5 =
5 u |
3x5 =
15 u |
| Change |
- 7 u |
|
|
| After |
3 u |
5 u |
8 u |
The number of purple markers remained unchanged.
LCM of 1 and 5 = 5
Total number of markers at first = 15 u
15 u = 90
1 u = 90 ÷ 15 = 6
Number of markers that Shannon had in the end
= 3 u + 5 u
= 8 u
= 8 x 6
= 48
Answer(s):48
