A person weighs 170 lbs at the start of the year and 158 lbs a few weeks later. How many kilograms were lost? (1 kg = 2.2 lbs)

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Multiple Choice

A person weighs 170 lbs at the start of the year and 158 lbs a few weeks later. How many kilograms were lost? (1 kg = 2.2 lbs)

Explanation:
When converting weight from pounds to kilograms, you first find how much weight was lost in pounds, then convert that amount to kilograms. The person lost 170 − 158 = 12 pounds. To convert pounds to kilograms, use 1 kg = 2.2 lbs, so 12 pounds equals 12 / 2.2 kilograms. That is 5.4545… kg, which rounds to about 5.45 kg. So the amount lost is approximately 5.45 kg. The other options don’t match this conversion: 0.18 kg is far too small for 12 pounds, while 26.4 kg and 54.5 kg correspond to much larger pound differences.

When converting weight from pounds to kilograms, you first find how much weight was lost in pounds, then convert that amount to kilograms.

The person lost 170 − 158 = 12 pounds. To convert pounds to kilograms, use 1 kg = 2.2 lbs, so 12 pounds equals 12 / 2.2 kilograms. That is 5.4545… kg, which rounds to about 5.45 kg.

So the amount lost is approximately 5.45 kg. The other options don’t match this conversion: 0.18 kg is far too small for 12 pounds, while 26.4 kg and 54.5 kg correspond to much larger pound differences.

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