The height of the sun from point A is larger than that from point B by 4.92 (degree). If the distance between A and B is 500 km, how long is the circumference of the earth? (Assume that earth is perfect sphere.)
tan 4.92 = 500 / Center - B Center - B = 5808 km = radius circle Circumference = 2 * pi * r = 36495 km
Two buses with uniform speeds of 75 km/hr and 60 km/hr started from stand A at the same time towards stand B. The faster bus after returning from stand B meets slower bus at a distance which is 9 km from stand B. What is the distance between stand A and stand B in km?
The distance between station A and station B is 623 km. The train starts from station A at speed 36 m/s at 1:00 pm. At what time train reach at station B ?
The length of a rectangular field is twice its width. Ramesh jogged around it 5 times and covered a distance of 3 km. What is the length of the field?
How many seconds will a 500 metre long train take to cross a man walking with a speed of 3 km/hr in the direction of the moving train if the speed of the train is 63 km/hr?
A and B take part in a 500 m race. A runs at 24 km per hour. A gives B a start of 40 m and still beats him by 15 seconds. What is the speed of B?
