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

Q: Problem: the sum of all the digits of the integers from 18 to 21 inclusive is 24 ( 1 + 8 + 1 + 9 + 2 + 0 + 2 + 1 = 24 ) . what is the sum t of all the digits of the integers from 0 to 99 inclusive ?

A: 900
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Q: Problem: what is the sum of the odd integers from 55 to 75 , inclusive ?

A: 71
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Q: Problem: a train 150 m long passes a man , running at 5 km / hr in the same direction in which the train is going , in 10 seconds . the speed of the train is :

A:
5
****