Related Questions

A motorist travels to a place 150 km away at an average speed of 50 km and returns at 30 km per hour. His average speed for the whole journey in km per hour is-
A 35
B 37
C 37.5
D 40
A motorist travels to a place 150 m away at an average speed for 50 km and returns at 30 km per hour. What is his average speed for the whole journey in km per hour ?
A 35
B 37
C 37.5
D 40
A car traveled 75% of the way from town A to town B at an average speed of 50 mph. The car travels at an average speed of S mph for there remaining part of the trip. The average speed for the entire trip was 40 mph. What is the value of S, in mph?
A 25
B 30
C 20
D 10
A car traveled 75% of the way from Town A to town B at an average speed of 50 mph. The car travels at an average speed of S mph for the remaining part of the trip. The average speed for the entire trip was 40 mph. What is the value of S, in mph?
A 25
B 30
C 20
D 10
Arif starting from x goes to Y. t the same time Boby starts from Y and goes towards X. Once Arif reaches Y, he changes his direction and returns to X. Once Boby reaches X, he changes his direction and returns to Y. Throughout the journey, Arif travels at 54 kmph and Boby travels at 72 kmph. By the time they meet for the second tike, boby covers 36 km more than Arif. Find the distance (in km) between X and Y.
A 72
B 84
C 96
D None
A train is travelling at 100 km per hour (Kmh) overtakes a motorbike travelling at a speed of 65 kmh in 40 seconds . What is the length of the train in meters?
A 400
B 450
C 500
D Try your self
The respective ratio between the speed of a speed of the car, bus and train is 5 : 9 : 6. The average speed of the car, bus and train is 72 km/hr together. What is the average speed (km/h)of the car and the train together?
A 82
B 72
C 67
D 84
একটি গাড়ি 8 kmh-1 বেগে চলছে। গাড়ি থেকে 16 kmh-1 বেগে একটি বস্তু কোন দিকে নিক্ষেপ করলে বস্তুটি গাড়ির বেগের সাথে সমকোণ চলবে?
A 90°
B 150°
C 120°
D 45°
একটি নদীতে স্রোতের বেগ 5 kmh-1 এবং একটি নৌকার বেগ 10 kmh-1 । স্রোতের সাথে কত ডিগ্রী কোণ করে নৌকা চালালে নৌকাটি অপর পারে ঠিক সোজাসুজি পৌছাবে?
A ১৫০
B ১৩০
C ১২০
কোন একটি নদীতে একটি দাঁড়ের নৌকার বেগ স্রোতের অনুকূলে 18 kmh-1 এবং প্রতিকূলে 6 kmh-1 নৌকাটিকে কোন দিকে চালনা করলে তা সোজা অপর পাড়ে পৌঁছাবে?
A 150°
B 135°
C 0°
D 120 °

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