The speed of a car is 60% more than the speed of a bus. The train can cover ( d + 850) km distance in ( t + 8) hours. The car covers (d-366) km distance in (t – 2) hours. The speed of train is 2.5 times the speed of bus. The distance travelled by bus is 640 km in which it will take ( t + 8 ) hours, then which of the following statements are true?

1. Unit digit of d is non – zero value
2. ‘t’ is perfect cube number.
3. In (t-2.5) hours car travel 352 km.