Esther had 125 crayons.
45 of them were blue crayons and the rest were green crayons. After she had given away some blue crayons, the ratio of the number of blue crayons to the number of green crayons became 3 : 5. How many crayons did she have in the end?
| |
Blue |
Green |
Total |
| Before |
4x5 =
20 u |
1x5 =
5 u |
5x5 =
25 u |
| Change |
- 17 u |
|
|
| After |
3 u |
5 u |
8 u |
The number of green crayons remained unchanged.
LCM of 1 and 5 = 5
Total number of crayons at first = 25 u
25 u = 125
1 u = 125 ÷ 25 = 5
Number of crayons that Esther had in the end
= 3 u + 5 u
= 8 u
= 8 x 5
= 40
Answer(s):40
