Question

Identify the term that will replace the ?

$8,11,15,22,33,51,?,127,203$

• A. $80$
• B. $53$
• C. $58$
• D. $69$

Answer 1

The correct option is A $80$

8 11 15 22 33 51 ? 127 203
Now difference of each no. of series will be;
8 11 15 22 33 51 ? 127 203
$11-8=3,15-11=4,22-15=7,33-22=11,51-33=18,?-51=?,127-?=?,203-127=76$
if we add all the differences in previous no. then we can get next no.
$8+3=11,11+4=15,15+7=22,22+11=33,33+11=51,51+18=80,80+47=127,127+76=203$
Thus Missing number is $80$ and option A is correct answer.