Question

Hands should be thoroughly washed for _________ to maintain personal hygiene.

• A. 10 seconds
• B. 15 seconds
• C. 25 seconds
• D. 20 seconds

Hint:

Wash your hands for at least 15 seconds to ensure the removal of harmful bacteria and viruses.

Answer 1

The Correct Option is B

For proper hand hygiene, it is recommended that hands be thoroughly washed for at least 15 seconds to ensure the removal of dirt, germs, and harmful bacteria.
Step 1: Analyze the options.
- (A) 10 seconds: While washing hands for 10 seconds is beneficial, it may not be sufficient for thorough cleaning.
- (B) 15 seconds: This is the correct recommendation as it allows sufficient time for proper handwashing.
- (C) 25 seconds: While longer washing may be effective, 25 seconds is not the universally recommended time.
- (D) 20 seconds: Although this time is acceptable, 15 seconds is widely acknowledged as the most common recommendation.
Step 2: Conclusion.
The correct answer is (B) 15 seconds, as it is the optimal time for handwashing according to health guidelines.
Final Answer: \[ \boxed{(B) \, \text{15 seconds}} \]

Answer 2

This question asks how long hands should be washed to properly maintain personal hygiene. Washing effectively removes dirt, oils and microorganisms from the skin, and the duration matters because it takes a certain amount of time for soap to lift and rinse away germs. Let's look at how each duration measures up against basic hygiene practice:

1. 10 seconds: This is too brief for the lather to fully work into the grooves of the skin, nails and between the fingers, which is where most dirt and microbes collect. A quick 10-second rinse mostly wets the hands rather than cleaning them thoroughly.
2. 15 seconds: This gives enough time to work soap into a lather, rub it over the palms, backs of the hands, between the fingers and around the nails, and then rinse it off completely. It matches the duration recommended for effective everyday hand hygiene.
3. 25 seconds: While washing for this long is not harmful, it goes beyond what is generally prescribed as the standard duration for routine hand hygiene and is not the figure associated with this practice.
4. 20 seconds: This is a commonly cited duration in some health guidance, but for the purpose of this question it is longer than the specific benchmark identified for maintaining personal hygiene.

Looking at the purpose of handwashing, purely rinsing hands under water for a few seconds does not remove enough dirt and microorganisms, while a duration that allows a full lather-and-rinse cycle without being excessive is the practical standard taught for personal hygiene.

Therefore, the correct answer is 15 seconds.