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7 October, 15:39

Jack's first weight increased by 20% and then his new weight decreased by 25%. His final weight is what percent of his beginning weight?

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  1. 7 October, 15:48
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    Lets suppose his initial weight was 60 kilograms

    A gain of 20% would make his new eight 60 + 20*60/100

    = 60 + 12

    = 72 kg

    he lost 25% of this:-

    = 72 - 25 * 72/100 = 54 kg

    This = (54/60) * 100 = 90% of his beginning weight Answer
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