Which mathematical symbol can be placed between 5, x and 9 to ensure that x is greater than 5 but less than 9?

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Multiplication

Addition

Division

Decimal Point

answer is D.

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Detailed Solution

Concept- To solve this question of chapter number system we are all the mathematics symbols.
First, let's try the different mathematical symbols.
First let us use addition + plus sign b/w 5 and 9

5 + 9 = 14

We get 14 but it is greater than 9 so it cannot be placed between 5 and 9 .
that means it is not the required symbol.
Then, use multiplication between 5 and 9.

5 \times 9 = 45 .

We get 45 but it is greater than 9 so it cannot be placed between 5 and 9.
that means it is not the required symbol.
Then, use division between 5 and 9.
We get 0.55 but it is less than 5 so it is not the required symbol.

5 \div 9 = 0.55

Since,
All basic mathematical symbols we can use are decimal points also.
Putting a decimal between 5 and 9 gives 5.9.
Then, 5.9 is a number greater than 5 and smaller than 9 so this is our required symbol.
Hence, the correct answer is option 4) decimal point.

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