Think of any number.
Multiply it by 2.
Add 5 to the result.
Multiply the result by 50.
Subtract 250.
Divide by 100.

What is the result ?

Answer: C. number itself

((number x 2) + 5) x 50 = (100 x number) + 250
The subtract 250 to get (100 x number)
Divide by 100 to get the number itself.

So, we always get the number itself.

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