A car and a bike can cover a distance of ‘d’ km in X hours and Y hours respectively, and the ratio of X to Y is 9 : 8. If the speeds of car and bike is 80 km/hr & 90 km/hr respectively, then find the value of ‘d’?

Correct option is C

ATQ, Let X =9a
And Y = 8a
For car, $$\frac{d}{80} = 9a$$​
d = 720a ---(I)
For bike, $$\frac{d}{90} = 8a$$​
d = 720a ----(II)
From (I) and (II) we can’t find the exact value of ‘d’
So, answer can’t be determined