Question

Choose the correct alternative that will continue the same pattern and replace the question mark in the given series.

$6,11,21,36,56,?$

• A. $42$
• B. $51$
• C. $81$
• D. $91$

Answer 1

The correct option is C $81$

$6,11,21,36,56,?$
Clearly the series is increasing by $+5,+10,+15,+20,+25,+30$
Hence, the missing number is $56+25=81$