Question

A rod of iron of uniform density has a thickness such that a one-inch-long segment of it weighs 3.88 ounces. Given that there are 0.035273 ounces in a gram and 2.54 centimeters in an inch, how many grams would a 14.79 cm length of the same iron rod weigh?
a.
73.30 g
b.
274.49 g
c.
640.51 g
d.
1,626.89 g


Please select the best answer from the choices provided

A
B
C
D

Answer 1

Convert 3.88 oz to grams: 3.88 ÷ 0.035273 ≈ 110.00 g per inch.
Convert 14.79 cm to inches: 14.79 ÷ 2.54 ≈ 5.8213 in.
Mass = 110.00 g/in × 5.8213 in ≈ 640.51 g.

Answer: C