What Is The Next Number In Series 3, 6, 9, 12, __, 18, 21? - Math Challenge

What is the next number in series? - In this math challenge, we will explore a classic math problem that has puzzled many people over the years: what is the missing number in the series 3, 6, 9, 12, __, 18, 21? We will break down the problem. So, grab a pen and paper, and let's get started!

Math Challenge

3, 6, 9, 12, ____, 18, 21.

A. 10
B. 15
C. 17
D. 24

B. 15

Answer: The missing number is 15.

Explanation:

We can observe that each number in the sequence is increasing by 3. Therefore, to find the missing number, we need to add 3 to the previous number, which is 12.

12 + 3 = 15

Hence, the missing number in the sequence is 15.

Therefore, the answer is option (ii) 15.

Congratulations! You have successfully solved the math challenge and found the missing number in the sequence. Hopefully, this problem has challenged your mind and helped you improve your math skills. If you enjoyed this challenge and want to try more, check out our other math riddle for further practice. Who knows, maybe you'll discover a new passion for numbers and puzzles! Keep learning and solving; we wish you all the best in your mathematical endeavors.

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