Hilda had 96 crayons.
34 of them were yellow crayons and the rest were green crayons. After she had given away some yellow crayons, the ratio of the number of yellow crayons to the number of green crayons became 7 : 8. How many crayons did she have in the end?
| |
Yellow |
Green |
Total |
| Before |
3x8 =
24 u |
1x8 =
8 u |
4x8 =
32 u |
| Change |
- 17 u |
|
|
| After |
7 u |
8 u |
15 u |
The number of green crayons remained unchanged.
LCM of 1 and 8 = 8
Total number of crayons at first = 32 u
32 u = 96
1 u = 96 ÷ 32 = 3
Number of crayons that Hilda had in the end
= 7 u + 8 u
= 15 u
= 15 x 3
= 45
Answer(s):45
