8
Q:
A) 2 : 5 | B) 8 : 15 |
C) 9 : 10 | D) 3 : 5 |
Answer: C) 9 : 10
Explanation:
Explanation:
The ratio of X and Y ages at present is 4:5.
Then, the ratio 20 years ago will not be more than the ratio at present.
So, from the options 9:10 is not satifying => its ratio is 0.9 which is greater than presnt ratio of 0.8.