Oh, The Grand Old Duke Of York (again)!

Algebra Level 2

He lost 10% of his men on the way up the hill, and he lost another 15% of what remained on the way down. What percentage of his 10000 men reached the bottom of the hill?

Oh, The Grand Old Duke Of York,

He had ten thousand men.

He marched them up

To the top of the hill,

And he marched them down again.


The answer is 76.5.

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2 solutions

Noel Lo
May 17, 2015

If you ask for the percentage, then you need not tell us the number of men at first.

Technically, he should. He could have 0 man and the scenario can still play out. With the answer as undefined.

Pi Han Goh - 6 years ago
Michael Mendrin
May 16, 2015

Sounds like the beginning of the March of Napoleon's Army into Russia and back.

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