The number obtained by interchanging the two digits of a two digit number is less than the original number by 27. If the difference between the two digits of the number is 3, what is the original number?

74

63

85

Cannot be determined

Correct Answer : D

The remainder when 7^{84} is divided by 342 is

If X is an odd integer, which of the following must be odd?

1. 2x + x II. x + x + x III. x * x * x

The difference between the greatest number and the smallest number of 6 digits using all but