What number should replace the question mark?
A. 83 64 45 ?? B. 96 65 34 ??
ANSWER
A= 26, B= 3
EXPLANATION:
IN A, 2nd number = (8-2)(3+1) = 64 3rd number = (6-2)(4+1) = 45 4th number = (4-2)(5+1) = 26 IN B, 2nd number = (9-3)(6-1) = 65 3rd number = (6-3)(5-1) = 34 4th number = (3-3)(4-1) = 03
143 - - - 22
26 - - - 4
104 - - - 16
65 - - - ?
51 - - - 306
17 - - - 136
45 - - - 405
26 - - - 208
38 - - - ?
