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D:\Surender Prajapati\Books Final_CBSE and ICSE\ICSE\Preparatory_Stage_Maths-5_(31-10-2023)\Open_Files\CHAP_10
\\November 3, 2023 12:46 PM Surender Prajapati Proof 5 Reader _________________________ Date: ___________________74

Chapter assessment
1. Choose the correct option.

(a) 10:48 p.m. in 24-hour clock is:

(i) 2212 hours (ii) 2048 hours (iii) 2312 hours (iv) 2248 hours

(b) 0010 hours in 12-hour clock is:
(i) 12:10 p.m. (ii) 12:10 a.m. (iii) 10:00 a.m. (iv) 10:00 p.m.

(c) If you go to sleep at 7:30 p.m. and wake up at 6:00 a.m. then you slept for ____.

(i) 12 hours 30 minutes (ii) 9 hours 30 minutes

(iii) 10 hours 30 minutes (iv) 11 hours 30 minutes
(d) The normal human body temperture is _______°F.

(i) 37 (ii) 86.9 (iii) 98.6 (iv) 96.8

2. A train leaves the station at 9:30 a.m. and reaches its destination at 6:45 a.m. the
next day. Find the duration of the journey.
3. Rohan joined a company on 5th September 2013 and left it on 3rd January 2022. How
long did he work for the company?

4. Riya is an 11-year-old student of class V, her winter vacations was from 5 December,
th
2022 to 12 January, 2023. For how many days her school was closed?
th
th
5. Salman and Sophia are siblings. Salman was born on 8 April, 2003 and his sister
rd
Sophia was born on 3 March, 2011. Who is younger among them and what is their
age difference? COMPETENCY BASED QUESTION

6. The temperature of tea during making period is 100°C. If the tea loses 10°C temperature
every minute after making, how much time does it take to reach 30°C?

7. Mehul loves to drink hot chocolate milk at night when she goes to sleep. She measured
the temperature of her milk and found that it was 147°F. After an hour, it get cooled
by 21°C. What was the temperature of the milk in °F COMPETENCY BASED QUESTION
after an hour?

8. The maximum temperature of a week is 42°C and minimum temperature is 22°C.
What is the difference between these temperatures in Fahrenheit scale?

9. Ram is suffering from fever as his body temperature is 4°F more than normal
temperature. What is the temperature of Ram’s body? Write your answer in °C.

10. A television channel telecasts an 18-second advertisement after every half an hour.
For how many minutes in a day advertisements are telecast on the channel?

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