Question (19/53)
Train when moves at an average speed of 40 km/hr, reaches its destination on time. When its average speed becomes 35 km/hr, then it reaches its destination 15 minutes late. What is distance travelled by train in journey ?(A) 30 km
(B) 40 km
(C) 70 km
(D) 80 km
Question (20/53)
Starting from his house one day, a student walks at a speed of 2 1/2 km/hr and reaches his school 6 minutes late. Next day he increases his speed by 1 km/hr and reaches the school 6 minutes early. How far is the school from house ?(A) 1.00 km
(B) 1.25 km
(C) 1.75 km
(D) 2.00 km