Question : If a boy walks from his house to school at the rate of 4 km/h, he reaches the school 10 minutes earlier than the scheduled time. However, if he walks at the rate of 3 km/h, he reaches 10 minutes late. Find the distance of his school from his house.

Option 1: 5 km

Option 2: 4 km

Option 3: 6 km

Option 4: 4.5 km

Question : A man walks from his house at an average speed of 5 km/h and reaches his office 6 minutes late. If he walks at an average speed of 6 km/h, he reaches 2 minutes early. The distance of the office from his house is:

Option 1: 6 km

Option 2: 9 km

Option 3: 12 km

Option 4: 4 km

Question : If a man walks 20 km at 5 km/hr, he will be late by 40 minutes. If he walks at 8 km/hr, how early from the fixed time will he reach? 

Option 1: 15 minutes

Option 2: 25 minutes

Option 3: 50 minutes

Option 4: $1\frac{1}{2}$ hours

Question : A train covers the distance between station A and station B in 45 minutes. If the speed of the train is reduced by 5 km/hr, then the same distance is covered in 48 minutes. The distance between stations A and B is:

Option 1: 60 km

Option 2: 64 km

Option 3: 80 km

Option 4: 55 km

Question : A train starts from station A and reaches station B.15 minutes late when it moves at 40 km/hr and 24 minutes late when it goes at 30 km/hr. The distance between the two stations is

Option 1: 24 km

Option 2: 16 km

Option 3: 18 km

Option 4: 21 km