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2 October, 14:28

Jason, Murray, and Dana. Dana caught a red snapper. Jason caught a tuna with a weight 3 times as great as the weight of the red snapper. Murray caught a sailfish with a weight 12 times as great as the weight of the red snapper. If the combined weight of the three fish was 208 pounds, how much did the tuna weigh?

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  1. 2 October, 14:36
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    Let us assume the weight of the red snapper caught by Dana = X

    The weight of the tuna caught by Jason was 3 times the weight of the snapper caught by Dana. Then,

    Weight of the tuna caught by Jason = 3X

    Weight of the sailfish caught by Murray is 12 times the weight of the red snapper caught by Dana. Then,

    Weight of the sailfish caught by Murray = 12X

    The combined weight of the 3 fishes caught = 208 pounds.

    Then,

    X + 3X + 12X = 208

    16X = 208

    X = 208/16

    = 13

    So the red snapper weighed 13 pounds

    The weight of the tuna caught by Jason = 3X

    = 3 * 13

    = 39

    So the tuna weighed 39 pounds.
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