- A10
- B12
- C15
- D8
Step-by-Step Solution
Present speed = 420/7 = 60 km/h; needed speed = 420/6 = 70 km/h. Increase = 10 km/h.
Answer: A) 10
A bus does a 420 km trip in 7 hours. How many km/h faster must it go to finish the same trip in 6 hours? (answer in km/h)
Competition practiceSpeed, Time & Distance
Master this topic in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.
Practice 5 Similar Questions Free →All Speed, Time & Distance practice questions
More Speed, Time & Distance practice
A fishing boat on the Hooghly covers 42 km upstream in 7 hours and the same 42 km…A boat covers 24 km downstream in 3 hours and returns the same distance upstream in 4…A motorboat moves at 16 km/h in still water. The river flows at 4 km/h. How many hours…A boat covers 24 km downstream in 3 hours and returns the same 24 km upstream in 4…Every Sunday Farhan rides from Indore to Ujjain at 48 km/h and returns by the same…