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Consider the given number pattern and identify the missing number.

  • A

    32

  • B

    33

  • C

    31

  • D

    23

The correct answer is 31.


Solution:

Considering the given number pattern.

Here, the numbers are increasing.
So, to find the missing number, we first find the rule.

Note that:
1 + 10 = 11
11 + 10 = 21
21 + 10 = 31
31 + 10 = 41

So, the rule is "add 10".



Then, the missing number is 31.