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6 September, 19:39

Luisa's current swimming record is 12% faster than it was last year. If her record last year was 4 minutes and 23 seconds, what is her record now? Round your answer to the nearest second.

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  1. 6 September, 21:47
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    12% less since faster

    100%-12%=88%

    88% of 4 min and 23 sec=

    0.88 times 263 seconds=

    =231.44=3 minutes and 50 seconds rounded

    3 mins, 50 seconds
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