Walking 6/7 of his usual speed, a man is 12 min too late. The usual time taken by him to cover that distance is

• 1 hr

• 1 h 12 min

• 1 h 15 min

• 1 h 20 min

A person travels 285 km in 6h. In the first part of the journey, he travels at 40 km/h by bus. In the second part, he travels at 55 km/h by train. The distance travelled by train is

• 165 km

• 615 km

• 561 km

• 156 km

A certain distance is covered at a certain speed. If half of this distance is covered in double the time, the ratio of the two speeds is

• 4 : 1

• 1 : 4

• 2 : 1

• 1 : 2

Two cars are moving with speeds v₁ and v₂ towards a crossing along two roads. If their distances from the crossing be 40 m and 50 m at an instant of time, then they do not collide, if their speeds are such that

• v₁ : v₂ ≠  4 : 5

• v₁ : v₂ ≠  5 : 4

• v₁ : v₂ ≠  25 : 16

• v₁ : v₂ ≠  16 : 25

A, B and C walk 1 km in 5 min, 8 min and 10 min, respectively. C starts walking from a point, at a certain time, B starts from the same point 1 min later and A starts from the same point 2 min later than C. Then, A meet B and C at times

• 2 min, 3 min

• 

• 2 min,  

• 1 min, 2 min

A man rides at the rate of 18 km/h but stops for 6 min to change horses at the end of every 7th km. The time that he will take to cover a distance of 90 km is

• 6 h

• 6 h 12 min

• 6 h 18 min

• 6 h 24 min

A farmer travelled a distance of 61 km in 9h. He travelled partly on foot at the rate of 4 km/h and partly on bicycle at the rate of 9 km/h. The distance travelled on foot is

• 14 km

• 17 km

• 15 km

• 16 km

68.

Walking at the rate of 4 km/h a man covers certain distance in 2 h 45 min. Running at a speed of 16.5 km/h the man will cover the same distance in how many minutes?

• 45

• 50

• 40

• 35

A man travelled a distance of 60 km in 7 hours. He travelled partly on foot @ 6km/h and partly on bicycle @ 12 km/h. What is the distance (in km) travelled on foot?

• 15 km

• 9 km

• 48 km

• 24 km