Number Series Ques 142
Question-
What will come in place of the question mark (?)
20, 29, 45, 70, ?, 155
(1) 90
(2) 206
(3) 110
(4) 106
(5) 130
Show Answer
Correct Answer: (4)
Solution: (4)
The pattern is :
$20+3^{2}=20+9=29$
$29+4^{2}=29+16=45$
$45+5^{2}=45+25=70$
$70+6^{2}=70+36=106$
$106+7^{2}=106+49=155$