Question

What should come in place of the question mark (?) in the given series? 53, 52, 39, 38, 2, 24

• A. 23
• B. 25
• C. 26
• D. 28

Answer 1

Answer:

B. 25

Observe the pattern in the series:

$53,\ 52,\ 39,\ 38,\ ?,\ 24$

The numbers decrease alternately by 1 and 13:

• (53 - 1 = 52)

• (52 - 13 = 39)

• (39 - 1 = 38)

• (38 - 13 = 25)

• (25 - 1 = 24)

So the missing number is:

$\boxed{25}$

Final Answer: 25