Question

If n is any natural number, then 6ⁿ − 5ⁿ always ends with

Options

• 1

• 3

• 5

• 7

Answer 1

We know that  `6^n ` will end in 6

And `5^n`will end in 5.

Now, `6^n-5^n` always end with  6 -5=1

Hence the correct choice in (a).