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13 June, 22:19

If a food label identifies the total number of kilocalories in a bowl of cereal as 140 and the carbohydrate kilocalories as 100, what is the approximate percentage of energy supplied by carbohydrates?

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  1. 13 June, 23:30
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    71.4%

    This is a simple exercise in division. What percent of 140 is 100? A little simple division will provide the answer: 100 / 140 = 0.714285714 = 71.4285714%

    Rounding to 3 significant figures gives 71.4%
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