What is 0.125 as a fraction?

Correct Answer: A

Rationale: To convert 0.125 to a fraction, we write it as 125/1000. Simplifying by dividing both the numerator and denominator by 125 gives us 1/8. Therefore, choice A (1/8) is the correct answer. Choice B (1/4) is incorrect as it represents 0.25, not 0.125. Choice C (1/2) is incorrect as it represents 0.5, not 0.125. Choice D (1/16) is incorrect as it represents 0.0625, not 0.125.

Correct Answer: A

Rationale: The decimal 0.004 can be represented as a ratio of 4/1000, which simplifies to 1/250, making the ratio 1:250. The correct answer is A. Choices B, C, and D are incorrect because they do not reflect the correct conversion of 0.004 into a simplified ratio. Choice B simplifies to 1:5, Choice C simplifies to 1:20, and Choice D simplifies to 9:20, none of which accurately represent the ratio of 0.004.

Correct Answer: B

Rationale: To convert liters to milliliters, you need to multiply by 1000, not 10000. Therefore, 0.2 liters equals 200 ml (0.2 x 1000 = 200 ml). Choice A, 20 ml, is incorrect because it's the result of multiplying by 10 instead of 1000. Choice C, 2 ml, is incorrect as it's the result of ignoring the decimal point. Choice D, 2000 ml, is incorrect because it's the result of multiplying by 10000.

Correct Answer: A

Rationale: In nursing, understanding metric conversions is crucial for accurate medication administration and dosage calculations. The question asks to convert 0.875 to a fraction. The correct answer is A) 7/8. 0.875 is already in decimal form, so converting it to a fraction involves recognizing that the decimal point is after the last digit. To convert a decimal to a fraction, we write the decimal as the numerator and place the appropriate power of 10 as the denominator. In this case, 0.875 is equivalent to 875/1000, which simplifies to 7/8. Option B) 8/7 is incorrect as it represents 1 and 1/7, not 0.875. Option C) 3/4 is incorrect as it is less than 0.875. Option D) 9/10 is also incorrect as it is greater than 0.875. Educationally, this question reinforces the importance of converting between decimals and fractions accurately in nursing practice. Understanding these conversions helps nurses interpret medication orders correctly and administer the right doses to patients. It also highlights the need for precision and attention to detail in mathematical calculations in healthcare settings.

Correct Answer: B

Rationale: To convert 0.1 liters to milliliters, you need to multiply by 1000, not 10000. Therefore, 0.1 liter converts to 100 ml. Choice A (10 ml) is incorrect because it is the equivalent of 0.01 liter. Choice C (1000 ml) is incorrect as it represents 1 liter. Choice D (1 ml) is significantly less than the correct conversion.