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If a disinfectant has a contact time of 10 minutes, how many times can it be use

Practice Questions

Q1
If a disinfectant has a contact time of 10 minutes, how many times can it be used in an hour?
  1. 4 times
  2. 5 times
  3. 6 times
  4. 7 times

Questions & Step-by-Step Solutions

If a disinfectant has a contact time of 10 minutes, how many times can it be used in an hour?
Correct Answer: 6 times
  • Step 1: Understand that 1 hour is equal to 60 minutes.
  • Step 2: Know that the disinfectant needs to stay in contact for 10 minutes each time it is used.
  • Step 3: To find out how many times it can be used in an hour, divide the total minutes in an hour (60) by the contact time (10).
  • Step 4: Perform the calculation: 60 minutes ÷ 10 minutes = 6.
  • Step 5: Conclude that the disinfectant can be used 6 times in an hour.
  • Time Management – Understanding how to calculate the number of uses of a disinfectant based on its contact time within a given period.
  • Basic Arithmetic – Applying division to determine how many 10-minute intervals fit into 60 minutes.
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