The task is to generate the correct answer for a given math problem.
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Question: Problem: a train passes a platform in 32 seconds . the same train passes a man standing on the platform in 20 seconds . if the speed of the train is 54 km / hr , the length of the platform is

Answer: 180 meter


Question: Problem: what is the units digit of 26 ! + 50 ! + 4 ! + 4 ! ?

Answer: 8


Question: Problem: a ( 3 , w ^ 3 ) is the ( x , y ) coordinate of point located on the parabola y = x ^ 2 - 1 . what is the value of w ?

Answer:
2 .