Number Series Ques 115

Question-

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

$1 \quad 3 \quad 11 \quad 37 \quad 117 \quad$ ?

(1) 344

(2) 347

(2) 359

(4) 342

(5) 361

Show Answer

Correct Answer: (3)

Solution: (3)

The pattern is :

$1 \times 3+0=3$

$3 \times 3+2=9+2=11$

$11 \times 3+4=33+4=37$

$37 \times 3+6=111+6=117$

$117 \times 3+8=351+8=359$