# Brain Teaser Of The Week Math Puzzle: If 10=31, 8=31, 7=31, 5=31, Then 9=?

## Brain Teaser Of The Week Math Puzzle: If 10=31, 8=31, 7=31, 5=31, Then 9=?

Brain teasers are an exciting form of a puzzle that needs thinking to solve. Brain teasers make you think out of the box and exploit your mind’s potential. One of the most recent brain teasers that have been trending on social media and boggling many minds is  Brain Teaser Of The Week Math Puzzle: If 10=31, 8=31, 7=31, 5=31, Then 9=?

Let us first have a look at what this puzzle is.

Image source: Fresherslive

## Brain Teaser Of The Week Math Puzzle: If 10=31, 8=31, 7=31, 5=31, Then 9=?- Solution

If you are still trying to get the answer to this, we have a hint for you, there are a few different solutions, but we have given you here one of the easiest solutions. Let us now see the solutions and its explanation.

• Take the 10, 8, 7, and 5 as months, and all have 31 days in them

• Now the 9th month is September, which has 30 days in it.

• So, the missing number is 30.

The picture given below will make you understand this solution better.

Image source: Fresherslive

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