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UKMT Intermediate Mathematical Challenge, 2019

Algebra Difficulty 1.0 Junior Find the answer United Kingdom

A recent report about the amount of plastic created in the last $65$ years stated that the $8.3$ billion tonnes produced is as heavy as $25\,000$ Empire State Buildings in New York or a billion elephants. On that basis, how many elephants have the same total weight as the Empire State Building?

(A) $4000$ (B) $40\,000$ (C) $400\,000$ (D) $4\,000\,000$ (E) $40\,000\,000$

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