MBA Exam

n= (63)^1!+2!+.....+63!+(18)^1!+2!+3!+.........+18!+(37)^1!+2!+3!.....+37!find the unit digit

1) 9
2) 6
3) 8
4) 7

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MBA Other Question

The ratio of interior angles of two regular polygons is 2 : 3, and the ratio of
their numbers of sides is 1 : 2. The numbers of sides of these polygons are ...

1) 6 and 12
2) 5 and 10
3) 4 and 8
4) 4 and 16
One numebr is removed form 1 to n.The average of remaining number is 40.75.Which number was removed..??

1) 60
2) 61
3) 62
4) none of these