Number Series Ques 145

Question-

What will come in place of the question mark (?)

$3,9,24,57, ?$

(1) 68

(2) 69

(3) 114

(4) 126

(5) 117

Show Answer

Correct Answer: (4)

Solution: (4)

The pattern is :

$(3 \times 2)+3=9$

$(9 \times 2)+6=24$

$(24 \times 2)+9=57$

$(57 \times 2)+12=126$