Question

if x is an odd number, which of the following is also odd?
A. x -1
B. x + 1
C. 2x
D. 2x - 1

Answer 1

Answer:

option d

2x-1 is correct answer

good night

Answer 2

Option D, 2x - 1 is odd.

x-1 and x+1 will be an even number, so option A and B are incorrect.

Option C, 2x is even, because any odd number multiplied by 2, becomes an even number.

--> So, option D is correct. 2x-1 or 2x+1 will be an even number.