Bholu is going Lucknow from his village Kharagpur by Bullet(bike). The Bullet covers first 75 km with a certain speed and next 90 km at an average speed of 10 km/hr more than the first speed. He reaches Lucknow in 3 hours. Find the original speed of Bullet.
1
60 km/hr
2
65 km/hr
3
50 km/hr
4
55 km/hr