Nokea
How many grams are in 0.5 kilograms?
- A. 50 grams
- B. 500 grams
- C. 5,000 grams
- D. 0.5 grams
Correct Answer: B
Rationale: To convert kilograms to grams, you need to multiply by 1000 since there are 1000 grams in 1 kilogram. Therefore, 0.5 kilograms is equal to 500 grams (0.5 x 1000 = 500). Choice A (50 grams) is incorrect as it is the result of multiplying by 10 instead of 1000. Choice C (5,000 grams) is incorrect as it is the result of adding an extra zero. Choice D (0.5 grams) is incorrect as it represents the original amount in grams, not the converted amount.
You may also like to solve these questions
What is 0.175 mg in mcg?
- A. 175 mcg
- B. 1.75 mcg
- C. 1750 mcg
- D. 17.5 mcg
Correct Answer: C
Rationale: To convert milligrams to micrograms, you need to multiply by 1000 because there are 1000 micrograms in 1 milligram. Therefore, 0.175 mg x 1000 = 1750 mcg. The correct answer is 1750 mcg. Choices A, B, and D are incorrect because they do not account for the conversion factor of 1000 between milligrams and micrograms. It's crucial to understand these conversions in medical calculations to ensure accurate dosing and prevent medication errors.
How many kilograms are in 1,500 grams?
- A. 0.15 kg
- B. 1.5 kg
- C. 15 kg
- D. 150 kg
Correct Answer: B
Rationale: To convert grams to kilograms, you divide by 1,000 since there are 1,000 grams in a kilogram. Therefore, 1,500 grams divided by 1,000 equals 1.5 kilograms, making choice B the correct answer. Choices A, C, and D are incorrect because they do not correctly convert grams to kilograms.
What is the equivalent of 255.0 pounds in kilograms (1 kg = 2.205 lbs)?
- A. 115.7 kg
- B. 126.0 kg
- C. 115.8 kg
- D. 115.6 kg
Correct Answer: D
Rationale: To convert pounds to kilograms, you need to divide the weight in pounds by 2.205 (1 kg = 2.205 lbs). Therefore, 255.0 pounds divided by 2.205 equals 115.6 kilograms. This results in choice D being the correct answer. Choices A, B, and C are incorrect as they do not reflect the accurate conversion calculation from pounds to kilograms.
Convert 345,000 millimeters to centimeters (cm).
- A. 34,500 cm
- B. 3,450 cm
- C. 345,000 cm
- D. 345,000,000 cm
Correct Answer: B
Rationale: To convert millimeters to centimeters, you need to divide by 10 since there are 10 millimeters in 1 centimeter. Therefore, 345,000 mm · 10 = 34,500 cm. Choice A is incorrect because it is a factor of 10 higher than the correct answer. Choice C is incorrect because it represents the original quantity in centimeters, not the converted value. Choice D is incorrect as it erroneously multiplies the millimeters by 1,000 instead of dividing by 10 to convert to centimeters.
What is 0.2 mg converted to mcg?
- A. 200 mcg
- B. 20 mcg
- C. 2000 mcg
- D. 2 mcg
Correct Answer: A
Rationale: To convert milligrams (mg) to micrograms (mcg), you need to multiply by 1000 because there are 1000 micrograms in 1 milligram. Therefore, 0.2 mg * 1000 = 200 mcg. This is the correct conversion. Choice B (20 mcg) is incorrect because it does not account for multiplying by 1000. Choice C (2000 mcg) is incorrect as it mistakenly multiplies by 10 instead of 1000. Choice D (2 mcg) is incorrect as it does not involve any conversion from milligrams to micrograms.