Assume that the total production of maize in the USA is 3 million tonnes. Calculate the percentage (approximately) of the total production of food crops in the world accounted by the USA?
Explanation:
The total production of maize in the USA is 3 million tonnes and maize constitutes 40% of the total production of the USA. Thus, total crop production in the USA = 30.4 = 7 million tonnes. Thus, the percentage of the total production of crops in the world accounted for by the USA = 7.5×100160 = 4.68% Hence, the answer is option B.
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