If a pharmacy chain sold 85 million 500−mg tablets of aspirin, how many tons does this represent?

9.6 t

Explanation:

You want to convert tablets ⟶ tons

I would use the conversion sequence:

tablets ⟶ milligrams ⟶ grams ⟶ kilograms ⟶ pounds ⟶ tons

1 tablet = 500 mg                   Convert tablets to milligrams

Milligrams = 85 × 10⁶ × 500/1

Milligrams = 4.25 × 10¹⁰ mg

1000 mg = 1 g                         Convert milligrams to grams

Grams = 4.25 × 10¹⁰ × 1/1000

Grams = 4.25 × 10⁷ g

1000 g = 1 kg                           Convert grams to kilograms

Kilograms = 4.25 × 10⁷ ×1/1000

Kilograms = 4.25 × 10⁴ kg

I kg = 2.205 lb                         Convert kilograms to pounds

Pounds = 4.25 × 10⁴ × 1/2.205

Pounds = 1.93 × 10⁴ lb

1 t = 2000 lb                            Convert pounds to tons

Tons = 1.93 × 10⁴ × 1/2000

Tons = 9.6 t

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