zaarathelab wrote:
If a and b are positive integers such that a – b and a/b are both even integers, which of the following must be an odd integer?
A. a/2
B. b/2
C. (a+b)/2
D. (a + 2)/2
E. (b+2)/2
a-b = can both be even or odd integers
a/b ; again a & b can both be even integers or else a can be even integer multiple of 4 and b an odd integer
so out of given options
IMO D ; is correct where a a multiple of 4 will give an odd integer
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