Samacheer Kalvi Class 4 Maths Solutions Term 1 Chapter 5 Time Exercise 5.3

A. Answer the following

Question 1. When will you start from home to school?
Answer: I will start from home to school at 8:00 am. Starting at this time helps ensure I reach school on schedule.
In simple words: I start for school at 8:00 in the morning.

🎯 Exam Tip: When answering questions about personal timings, always state the time clearly and add 'am' or 'pm' to specify if it's morning or evening.

Question 2. When will you reach your school?
Answer: I will reach my school at 8:15 am. This arrival time allows a few minutes to settle in before classes begin.
In simple words: I get to school at 8:15 in the morning.

🎯 Exam Tip: Make sure the arrival time is logical and slightly later than the departure time, reflecting travel duration.

Question 3. How much time will it take for you to reach the school?
Answer: It will take 15 minutes to reach the school. This short travel time is good for staying alert before school starts.
In simple words: It takes me 15 minutes to go to school.

🎯 Exam Tip: Always state the duration of time clearly and include the unit, such as 'minutes' or 'hours'.

Question 4. When will you reach the school if you delay by 10 minutes?
Answer: If I delay by 10 minutes, I will reach the school at 8:25 am. This means adding the 10-minute delay to the usual arrival time of 8:15 am.
In simple words: If I am 10 minutes late, I will reach school at 8:25 am.

🎯 Exam Tip: When calculating delays, always add the delay duration to the original time to find the new arrival time.

Question 5. When would you reach the school if you start early by 5 minutes?
Answer: If I start early by 5 minutes, I would reach the school at 8:10 am. This helps me get to school a little bit earlier than usual.
In simple words: If I start 5 minutes early, I will reach school at 8:10 am.

🎯 Exam Tip: When calculating an earlier start or arrival, subtract the early duration from the original time.

Question 6. Ravi reaches school by 8:30 am and Prabu reaches school after 30 minutes, Find the time when prabu reach the school?
Answer: Ravi reaches school at 8:30 am. Prabu reaches school 30 minutes after Ravi. To find Prabu's arrival time, we add 30 minutes to 8:30 am, which gives us 9:00 am. So, Prabu reaches school at 9:00 am.
In simple words: Ravi gets to school at 8:30 am. Prabu comes 30 minutes later, so Prabu reaches at 9:00 am.

🎯 Exam Tip: For time calculations, remember to add minutes until you reach the next full hour, then adjust the hour accordingly.

B. How long will it take the hour hand to move from the positions given in the clocks.

Question 1.
Answer: 9 hours. The hour hand moves clockwise from 9 to 6. This path covers 9 hours of time.
In simple words: The clock hand moves from 9 o'clock to 6 o'clock. This is a total of 9 hours.

🎯 Exam Tip: To calculate the time elapsed, count the number of hours the hour hand moves in a clockwise direction. If it crosses 12, continue counting.

Question 2.
Answer: 10 hours. The hour hand moves clockwise from 10 to 8. This journey covers 10 hours of time.
In simple words: The clock hand moves from 10 o'clock to 8 o'clock. This takes 10 hours.

🎯 Exam Tip: Practice counting hours on a clock face, especially when the hour hand crosses the 12 to ensure accurate calculations.

Question 3.
Answer: 10 hours. The hour hand moves clockwise from 9 to 7. This duration is 10 hours.
In simple words: The clock hand moves from 9 o'clock to 7 o'clock. This is 10 hours.

🎯 Exam Tip: Always visualize the clockwise movement of the hour hand on a clock to accurately count the hours passed.