The task is to generate the correct answer for a given math problem.

Input: Consider Input: Problem: a work as fast as b . if b can complete a work in 8 days independently , the number of days in which a and b can together finish the work in ?

Output: 2 2 / 3 days


Input: Consider Input: Problem: after decreasing 24 % in the price of an article costs rs . 684 . find the actual cost of an article ?

Output: 900


Input: Consider Input: Problem: a train 360 m long runs with a speed of 45 km / hr . what time will it take to pass a platform of 150 m long ?


Output: 40.8 sec