Question 12 of 17intermediate🔧 ApplyNumerical2 marks

Ragini took 1 hour 10 minutes to do her homework. She finished it at 09:40 PM. What time did she start?

Correct Answer

Given: End time = 09:40 PM Duration = 1 hour 10 minutes

Calculation: Subtract 1 hour from 09:40 PM = 08:40 PM Subtract 10 minutes from 08:40 PM = 08:30 PM

Answer: Ragini started her homework at 08:30 PM.

Exercise: Let Us Do | Q: 5 | (Page Page 9)
For More Understanding

Explanation

To find the start time, we subtract the duration from the end time. From 09:40 PM, going back 1 hour gives 08:40 PM. Going back 10 more minutes gives 08:30 PM.

Solution Steps

  1. Step 1: End time = 09:40 PM

  2. Step 2: Duration = 1 hour 10 minutes

  3. Step 3: Subtract 1 hour from 09:40 PM = 08:40 PM

  4. Step 4: Subtract 10 minutes from 08:40 PM = 08:30 PM

  5. Step 5: Start time = 08:30 PM

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