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?
Answer
A
The jar of pennies weighs 8.41 pounds more than the jar of nickels.
B
The jar of pennies weighs 0.089 pounds more than the jar of nickels.
C
The jar of nickels weighs 2.06 pounds more than the jar of pennies.
D
The jar of nickels weighs 1.55 pounds more than the jar of pennies.
Explanation
Convert the pennies’ weight to kilograms: 84.96 × 0.0283495 ≈ 2.408 kg. The nickels weigh 3.11 kg, so they are heavier by about 3.11 − 2.408 = 0.702 kg. Converting that difference to pounds gives 0.702 ÷ 0.453592 ≈ 1.55 pounds. Therefore, the jar of nickels weighs 1.55 pounds more than the jar of pennies.
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