general Maths Puzzle

A four digit number 5775 is written 8000 times (i.e. a 32000 digit number) side by side. What is the reminder when this number is divided by 18?
a. 1b. 3c. 5d. 12

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general Other Question
Find the remainder when 17 * 18 * 19 * . . . . *37 divided by 100 An old man has Rs.(1! + 2! + ........ + 50!) ,all of which he wants to divide equally (without fractions) among his 'n' children. Then 'n' is equal to.....
a)5 b)7 c)9 d) 11