Choose or find odd number - 6 , 12 , 18 , 9 , 7

E. 7

Choose or find odd number - 49 , 63 , 77 , 81

D. 81

Choose or find odd number - 150 , 175 , 200 , 250

B. 175

Choose or find odd number - 325 , 236 , 178 , 639 , 538

B. 236

Choose or find odd number - 2468 , 2648 , 4826 , 6482

A. 2468