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Question

The number of pillars in the palace is m and the number of floors is 4 less than m. If m = 9, number of floors in the palace is .

A
5
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B
7
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C
9
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Solution

The correct option is A 5
The number of pillars in the palace is m.

Value of m is 9.

∴ Number of pillars = 9



Now, the number of floors in the palace is 4 less than m.
"Less than" means subtraction.

So, we can write it as:

Putting the value of m as 9 in the expression, we get:


∴ The number of floors in the palace is 5.

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