Question

Which number should replace the question mark ?
8, 15, 24, 35, ?

• A. $42$
• B. $52$
• C. $48$
• D. None of these

Answer 1

The correct option is C $48$

The numbers in series are in the order of $3^2-1,4^2-1,5^2-1,etc.$

So, the next term will be $7^2-1=48$ (option C)