A bottle of medication contains 16 ml, which is 20% less than a syringe containing the same medication. How much medication does the syringe contain?
18.0 ml.
18.2 ml.
19.2 ml.
20.0 ml.
The Correct Answer is D
To determine how much medication the syringe contains, given that 16 ml is 20% less than the amount in the syringe, we can set up the following equation:
Let x be the amount of medication in the syringe. We know that 16 ml is 20% less than x:
16 = x − 0.2x
This simplifies to:
16=0.8x
Solving for x:
x = 
Therefore, the syringe contains:
20.0 ml.
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Related Questions
Correct Answer is B
Explanation
To determine the new infusion time when the rate is 20% slower, follow these steps:
Find the original infusion time:
The original time is 45 minutes.
Calculate the 20% slower rate:
A 20% slower rate means the time will be increased by 20%.
20% of 45 minutes is: 0.20×45=9minutes
Add the extra time to the original time:
The new infusion time is: 45minutes + 9minutes =54minutes
Therefore, the nurse should infuse the medication over: 54 minutes
Correct Answer is C
Explanation
To find what percent the ratio of 4 to 9 represents, follow these steps:
Convert the ratio 4/9 to a decimal:
4/9 ≈ 0.4444
Convert the decimal to a percentage by multiplying by 100:
0.4444 × 100 = 44.44%
Rounding this to one decimal place gives us:
44.4%
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