A clock gains 5 minutes every hour. If it shows 10:00 AM now, what will be the a

Practice Questions

Q1
A clock gains 5 minutes every hour. If it shows 10:00 AM now, what will be the actual time when it shows 12:00 PM?
  1. 11:30 AM
  2. 11:50 AM
  3. 12:10 PM
  4. 12:20 PM

Questions & Step-by-Step Solutions

A clock gains 5 minutes every hour. If it shows 10:00 AM now, what will be the actual time when it shows 12:00 PM?
Correct Answer: 11:50 AM
  • Step 1: Understand that the clock gains 5 minutes for every hour.
  • Step 2: Calculate the total time from 10:00 AM to 12:00 PM. This is 2 hours.
  • Step 3: Calculate how many minutes the clock gains in those 2 hours. It gains 5 minutes each hour, so in 2 hours it gains 5 minutes/hour * 2 hours = 10 minutes.
  • Step 4: When the clock shows 12:00 PM, it has gained 10 minutes.
  • Step 5: To find the actual time, subtract the gained time from the clock time: 12:00 PM - 10 minutes = 11:50 AM.
  • Step 6: Therefore, the actual time when the clock shows 12:00 PM is 11:50 AM.
  • Time Calculation – Understanding how to calculate the actual time based on the rate of gain of a faulty clock.
  • Rate of Gain – Applying the concept of a clock gaining time at a specific rate over a given duration.
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