Question Details

If 1254÷56=5n, calculate the value of n.

Options

A

4

B

10

C

8

D

6

Show Answer

Correct Answer :

Option D

6

4

Solution :

The correct answer is 6.

To find the value of n, we can express all terms as powers with base 5.

First, write 125 as a power of 5:

125=53

Substitute this into the expression 1254:

1254=534

Using the power of a power rule of exponents, amn=am×n:

534=53×4=512

Now substitute 512 back into the given equation:

512÷56=5n

Using the quotient rule of exponents, am÷an=am-n:

512-6=5n

56=5n

Equating the exponents since the bases are identical gives:

n=6

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