Use some thinking to answer the following question. On average, the bottle-nosed dolphin comes up for air once every three minutes; the beluga whale, a close relative, comes up for air on average once every nine minutes. The number of times a bottle-nosed dolphin would come up for air in a 24 hour period is approximately what percent greater than the number of times a beluga whale would come up for air in that same period?\nOptions:\n(A) 150%\n(B) 200%\n(C) 250%\n(D) 300%\n(E) 350%
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Dolphin once in 3 min;\nBeluga once in 9 min;\nSo, dolphin comes up 3 times frequently than beluga, which is 300% (9-3)/2*100. So the final answer is (D).
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