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Free Test Prep ASVAB Test Exam Braindumps (page: 48)

Page 48 of 474
PDF with 1893 Questions

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?

  1. 18%
  2. 22%
  3. 40%
  4. 54%
  5. 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.



A paint company mixes its paint with water to create more paint per gallon. They currently have ten gallon jugs which contain 10% water.
How much water must they add to create an 80/20 mix of paint to water?

  1. 1 gallon
  2. 1.25 gallons
  3. 1.5 gallons
  4. 1.75 gallons
  5. 2 gallons

Answer(s): B

Explanation:

Currently the mixture is 90% paint, 10% water or 9 gallons of paint for every 1 gallon of water. For the company to create an 80% / 20% mix, the company must add 1.25 gallons to their current 10 gallon mixtures. This will create 2.25 gallons of water for every 11.25 total gallons. This results in a 2.25/11.25 or 20% water mix.



A mail carrier can deliver mail to 1,400 different homes in one day. In the city of Utopia, there are 52,800 residents.
How many mail carriers must be hired to deliver mail to all of the residents of Utopia each day?

  1. 38
  2. 43
  3. 48
  4. 54
  5. 60

Answer(s): A

Explanation:

To find the number of required mail carriers, simply divide 52,800 by 1,400 to get 37.714. Therefore, you must round up and you have 38 mail carriers.



How much change would you get back from a $100.00 bill if you purchased eight DVDs costing $6.49 each?

  1. $24.24
  2. $48.08
  3. $51.92
  4. $64.90

Answer(s): B



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