ASVAB Test Exam dumps PDF | Exam-Dumps.net (Page: 37)

QUESTION: 181

A world map has a scale of 1/4 of an inch equals 250 miles. You measure the distance between New York, NY and Los Angeles, California and it equals 3 inches.
What is the real distance between New York and LA?

2,500 miles
2,750 miles
2,800 miles
3,000 miles
3,250 miles

Answer(s): D

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QUESTION: 182

Of 1,000 dogs, 72% are male. Among the males, 3 out of 5 were over the age 5.
How many of the dogs were males over the age of 5?

312
432
468
512
720

Answer(s): B

Explanation:

First multiply 1000 × 0.72 to find out how many dogs are male. This results in 720 male dogs of which 3/5 are over the age of 5. Therefore, multiply 720 × 3/5 (or 0.6) which results in 432.

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QUESTION: 183

There are 78 female and 54 male patrons at a local diner.
What percentage of the diner's patrons are female?

37%
41%
52%
59%
67%

Answer(s): D

Explanation:

Add 78 to 54 to get 132 total patrons, then divide the number of females into the total number of patrons.
Therefore, 78/132 = 0.5909 = 59%.

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QUESTION: 184

A new cancer treatment provides a 50% success rate for patients with lung tumors. Lung tumors make up 10% of all cancer patients.
What percentage of all cancer patients will this new drug work on?

5%
20%
50%
80%
95%

Answer(s): A

Explanation:

A simple way to solve this is to multiply the two percentages. Therefore, multiply 0.50 × 0.10 and you get 0.05 or 5%.

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QUESTION: 185

A person who has a heart attack can be saved 90% of the time if a defibrillator is used within 5 minutes of the heart attack. Of the people that have heart attacks, defibrillators are within the vicinity 40% of the time; however, they are only used 60% of the time even when they are in the surrounding area.
How many people who suffer a heart attack are saved because of the use of a defibrillator?

18%
22%
40%
54%
60%

Answer(s): B

Explanation:

If a defibrillator is used, we know that the patient will have a 90% success rate; however, only 40% of the people have this option available.
Therefore, we take 0.9 × 0.4 and know that only 36% of the people have this opportunity.
However, we also know that of the 36% of suffers, only 60% of the time is a defibrillator used.
Therefore, we must take 0.6 × 0.36 to find out how many patients are saved by the use of a defibrillator.
This results in 0.216 or 22% of patients are saved by the use of a defibrillator.

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