Brishti went on a 8-hour trip in a car, before the trip the car had traveled a total of x kms till then, where x is a whole number and is palindromic, At the end of his trip the car had had traveled a total of 26862 km. If Bristi never drove at more than 110 km/h, then the greatest possible average speed at which see dove is?

Question

A train travelling at 48 km/h completely crosses another train having half the length of first train and travelling in opposite direction at 42 km/h in 12 seconds. The train having speed 48 km/h also passes a railway platform in 45 seconds. What is the length of the platform?

Answer 1

The trip covered 26862 kilometers and lasted 8 hours. The kilometers traveled before the trip, calculated as 26862 - 8s (where 's' is the average speed), should be a palindrome. If s = 110, the reading is \(26862 - 110\times8 = 25982\), which is not a palindrome. If s = 100, the reading is \(26862 - 100\times8 = 26062\). This value is a palindrome. Therefore, s = 100 is the correct choice. The correct answer is 100.

The Correct Option is D

Solution and Explanation

Top Questions on Time, Speed and Distance

Questions Asked in CAT exam