series

Question

40, 54, 82, ?, 180 ,250
(1) 142
(2) 124
(3) 136
(4) 163
(5) None of these

Answer 1

40  54  82   ?  180   250

40,54  ---- difference 14

54,82 ----- 28 (14*2)

180,250 ----70(14*5)

82,x --- 42(14*3)

x, 180 --- 56(14*4)

So x= 124

Option 2