Raeann had 120 markers.
78 of them were pink markers and the rest were red markers. After she had given away some pink markers, the ratio of the number of pink markers to the number of red markers became 3 : 5. How many pink markers did she give away?
| |
Pink |
Red |
Total |
| Before |
7x5 =
35 u |
1x5 =
5 u |
8x5 =
40 u |
| Change |
- 32 u |
|
|
| After |
3 u |
5 u |
8 u |
The number of red markers remained unchanged.
LCM of 1 and 5 = 5
Total number of markers at first = 40 u
40 u = 120
1 u = 120 ÷ 40 = 3
Number of pink markers that she gave away
= 35 u - 3 u
= 32 u
= 32 x 3
= 96
Answer(s):96
