Number Series Ques 91

Question-

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

$8 \quad 9 \quad 17 \quad 26 \quad 90 \quad$ ?

(1) 121

(2) 109

(3) 115

(4) 111

Show Answer

Correct Answer: (3)

Solution: (3)

The pattern is :

$8+1^{2}=8+1=9$

$9+2^{3}=9+8=17$

$17+3^{2}=17+9=26$

$26+4^{3}=26+64=90$

$90+5^{2}=90+25=115$