Extra easy problem

Algebra Level 2

5x5x5x5x5x5x5x5x5x5

1953125 1956785 80 50

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2 solutions

Mr. India
Mar 4, 2019

The expression is divisible by 25 and it is obvious that factors of 25 either end with 25 ,50, 75 or 00 as last 2 digits.

This leaves only 1 option I.e 1953125 \boxed{1953125}

I still miscalculated the problem

George Taylor - 2 years, 3 months ago
George Taylor
Mar 4, 2019

5x5=25 25x5=125 125x5=625 625x5=3125 3125x5=15625 15625x5=78125 78125x5=390625 390625x5={1953125}

it is very confusing unlike the title though.

George Taylor - 2 years, 3 months ago

sorry if you do not like it.

George Taylor - 2 years, 3 months ago

I suggest you to post problems which need thinking and not calculator.

Mr. India - 2 years, 3 months ago

I did it without a calculator.

George Taylor - 2 years, 3 months ago

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I guess you missed the point

Mr. India - 2 years, 3 months ago

I still miscalculated the problem

George Taylor - 2 years, 3 months ago

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