Number Series Ques 104
Question-
What will come in place of the question mark (?)
$\begin{array}{llllll}13 & 20 & 39 & 78 & 145 & \text { ? }\end{array}$
(1) 234
(2) 244
(3) 236
(4) 248
(5) None of these
Show Answer
Correct Answer: (4)
Solution: (4)
The pattern of the number series is :
$13+7=20$
$20+19(=7+12)=39$
$39+39(=19+20)=78$
$78+67(=39+28)=145$
$145+103(=67+36)$ $=248$