Usha had 120 markers.
23 of them were gold markers and the rest were purple markers. After she had given away some gold markers, the ratio of the number of gold markers to the number of purple markers became 3 : 4. How many markers did she have in the end?
| |
Gold |
Purple |
Total |
| Before |
2x4 =
8 u |
1x4 =
4 u |
3x4 =
12 u |
| Change |
- 5 u |
|
|
| After |
3 u |
4 u |
7 u |
The number of purple markers remained unchanged.
LCM of 1 and 4 = 4
Total number of markers at first = 12 u
12 u = 120
1 u = 120 ÷ 12 = 10
Number of markers that Usha had in the end
= 3 u + 4 u
= 7 u
= 7 x 10
= 70
Answer(s):70
