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According to the official weights of U.S. contemporary coins, a quarter weighs 5.67 grams. One pound = 453.59 gms; therefore there are approximately 80 quarters per pound. 18 pounds of quarters times 80 quarters per pound = 1440 quarters at value of .25 cents each is (drum roll please!) . . .$360.00

Note: This is only an estimate. A more reliable way would be to measure one pound of quarters on a very reliable scale, count the value of one pound, and then multiply by 18.

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15y ago

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