Fanny had 80 markers.
34 of them were grey markers and the rest were pink markers. After she had given away some grey markers, the ratio of the number of grey markers to the number of pink markers became 3 : 5. How many markers did she have in the end?
| |
Grey |
Pink |
Total |
| Before |
3x5 =
15 u |
1x5 =
5 u |
4x5 =
20 u |
| Change |
- 12 u |
|
|
| After |
3 u |
5 u |
8 u |
The number of pink markers remained unchanged.
LCM of 1 and 5 = 5
Total number of markers at first = 20 u
20 u = 80
1 u = 80 ÷ 20 = 4
Number of markers that Fanny had in the end
= 3 u + 5 u
= 8 u
= 8 x 4
= 32
Answer(s):32
