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Practice each question, then open the answer or worked solution.
Question: 31
How long did it take for the letter to reach from Ajmer to Nagpur?
Answer: From Ajmer, Atif wrote the letter on 1/5/06. Shobhna got the letter on 6/5/06 in Nagpur. So, the letter took 5 days to reach from Ajmer to Nagpur.
Question: 32
How many days will Atif spend at his Nani’s place?
Answer: On 5/5/06, Atif went to his Nani’s place.
On 20/5/06, he returned back from there.
Therefore, he spent 15 days at his Nani’s place
Question: 33
Fill in the table:
| Dates | Number of Days | ||
| From | To | ||
| Shabana’s holidays | 1st June 2006 | 10th August 2006 | 70 days |
| Atif’s holidays | 1st May 2006 | 30th June 2006 | 60 days |
Question: 34
Who has got longer holidays – Shabana or Atif?
Answer: Shabana got 70 days holidays in her school, while Atif got 60 days holidays in his school. Hence, Shabana got longer holidays than Atif.
Question: 35
Which long holidays do you get in school? Fill the table.
Answer: The given holidays start and end on the dates given below
| Occasion | Dates | Number of Days | |
| From | To | ||
| Summer Holidays
Autumn Break Winter Break Holidays after the Exam |
1st April
11 October 25 December 5th March |
1st June
19 October 10 January 2nd April |
60 days
9 days 17 days 29 days |
NCERT Book Page No. 48
Question: 36
(a) In which month was the butter packed?
Answer: The butter was packed on 15th January 2006.
(b) Which date will it be 180 days after 15/01/06?
Answer: Let us calculate 180 days from the date of manufacture.
Days in January = 17 days
In February = 28 days
In March = 31 days
In April = 30 days
In May = 31 days
In June = 30 days
Total days = 17 + 28 + 31 + 30 + 31 + 30 = 167 days
Remaining days = 180 – 167 = 13 days
Hence, the date will be 13th July 2006.
(c) Can Chandran eat it on 15th May 2006?
Answer: Yes, he can eat it on 15th May 2006.
Find Out
Question: 37
Which are the other things that come with an expiry date?
Answer: Every product comes with an expiry date. Cold drinks, medicines, biscuits, sweets etc., have an expiry date.
Question: 38
What month and year is written as 07/05? Would it be safe to take the cough syrup in September 2005?
Answer: The month and year is written as 07/05, which shows that it is July 2005. No, it is not safe to take the cough syrup in September 2005 as the expiry date is till July 2005 only.
NCERT Book Page No. 49
Can you guess why they missed the train?
Answer: Railway uses 24 hours clock time. The ticket shows the time as 5:30 means the train was in the morning and they reached at 5:15 in the evening. If it was in the evening, it would have been written as 17:30. Hence, they missed the train.
NCERT Book Page No. 50
Question: 40
Look at this chart. It tells the difference between your watch and a 24-hour clock. Try to complete it.
| Time by Your Watch (12-hour clock) | Time by a 24-hour Clock |
| 1 O’clock in the afternoon | 13:00 hours |
| 2 O’clock in the afternoon | 14:00 hours |
| 3 O’clock in the afternoon | 15:00 hours |
| 3:30 in the afternoon | 15:30 hours |
| 6 O’clock in the evening | 18:00 hours |
| 9 O’clock in the evening | 21:00 hours |
| 12 O’ clock at midnight | 24:00 hours |
NCERT Book Page No. 51