Question

113. 9, 19, 40, 83, 170, 340
(a) 340
(b) 170
(c) 83
(d) 40.
NLU, Delhi, 2013​

Answer 1

Answer:

We need to find the wrong number in the series here...

Your answer is (a) 240

Step-by-step explanation:

9*2+1=19

19*2+2=40

40*2+3=83

83*2+4=170

170*2+5=345

So the last term must be 345 instead of 340.

thank you.