Number Series Ques 62

Question-

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

$8 \quad 11 \quad 16 \quad 25 \quad 42 \quad$ ?

(1) 88

(2) 84

(3) 75

(4) 96

(5) 60

Show Answer

Correct Answer: (3)

Solution: (3)

The pattern is :

$8+3(=2+1)=11$

$11+5\left(=2^{2}+1\right)=16$

$16+9\left(=2^{3}+1\right)=25$

$25+17\left(=2^{4}+1\right)=42$

$42+33\left(=2^{5}+1\right)=75$