Q19. What will come in place of (?) in the following number series?
6 17 39 72 ?
(a) 94
(b) 127
(c) 83
(d) 116
6+11=17; 17+22 = 39; 39+33 =72; 72+44 = 116
Q58. What will come in place of (?) in the following number series?
9 17 33 65 ?