Question: Which of the following has about the same mass as 24 oz of potatoes?
A ) a greeting card that weighs 68 grams B ) a package of pens that weighs 680 grams C ) a box of raisins weighing 500 grams D ) a textbook that weighs 1,000 grams
Steps to derive
1 Weight of potatoes = 24 ounces
2 1 ounce is little more than 28 grams.
3 24 ounces ≈ 24 × 28 = 672 grams
4 The weight of the potates is 672 grams.
5 So, package of pens that weighs 680 grams has about the same mass as 24 oz of potatoes.