GMAT Math - Speed, Time and Distance

December 16, 2003: Steve traveled the first 2 hours of his journey at 40 mph and the last 3 hours of his journey at 80 mph. What is his average speed of travel for the entire journey? Answer »

January 06, 2004: Jane covered a distance of 340 miles between city A and city taking a total of 5 hours. If part of the distance was covered at 60 miles per hour speed and the balance at 80 miles per hour speed, how many hours did she travel at 60 miles per hour? Answer »

February 5, 2004: A runs 25% faster than B and is able to give him a start of 7 meters to end a race in dead heat. What is the length of the race? Answer »

February 23, 2004: Jim travels the first 3 hours of his journey at 60 mph speed and the remaining 5 hours at 24 mph speed. What is the average speed of Jim’s travel in mph? Answer »

April 7, 2004: A train traveling at 100 kmph overtakes a motorbike traveling at 64 kmph in 40 seconds. What is the length of the train in meters? Answer »

May 4, 2004 : A train traveling at 72 kmph crosses a platform in 30 seconds and a man standing on the platform in 18 seconds. What is the length of the platform in meters? Answer »