Other Maths Puzzle Category

find the last two digits of 153763519717

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Other Other Question

Fill in the missing number :

13, 33, 85, ? , 349, 593 . In a town railway station there are 25 stations on line. At each of the 25 stations the passengers can get tickets for any of the other 24 stations. How many different kinds of tickets do you think the ticket booker will have to keep?

A. 600
B. 250
C. 750
D. 315