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13 September, 13:40

John is weighing his jars of coins. His jar of pennies weighs 84.96 ounces, and his jar of nickels weighs 3.11 kilograms. There are 0.0283495 kilograms per ounce. Which jar weighs more, and how many more pounds does it weigh?

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  1. 13 September, 16:18
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    Weight of Jar of pennies=84.96 ounces

    weight of jar of nickels=3.11 kg

    but 1 ounce=0.0283495 kg

    thus the weight of jar of pennies when converted into Kgs we shall have:

    (84.96*0.0283495) = 2.40857352 kg

    Hence we conclude that the Jar of nickels is heavier than the jar of pennies by:

    (3.11-2.40857352) = 0.70142648 kg
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