Question

Find the time- \[2\] hours $25$ minutes after $9:40$ a.m.

Answer 1

Hint: To find the time first add the hours then add minutes as it will make it easier to add, and then proceed.

Complete step-by-step answer:
here the given time is $9:40$ a.m and we have to find the time after \[2\] hours $25$ minutes. So to make it easier we will first add the hours then we will add minutes.
Here we can write $9:40$ a.m as $9$ hours $40$ minutes in the morning. So we can add the hours-
$ \Rightarrow $ $9 + 2 = 11$ So after adding hours the time becomes $11:40$ a.m. Now we will add minutes. We can write $25$ minutes as $(20 + 5)$ minutes. The minutes change to $40 + 20 = 60$ minutes after adding $20$ minutes and we know that $60{\text{ minutes = 1 hour}}$ which means $11:40$ a.m becomes $12:00$ p.m.
After $20$ minutes a.m. will change to p.m. as it will be afternoon time. So the time will be $12:00$p.m. and after adding the $5$ more minutes the time will be $12:05$ pm.
Hence the time will become $12:05$ pm.


Note: Here the student may get confused between the use of p.m. and a.m. The time of $24$ hours is divided into two halves- $12$ hours before midday and $12$ hours after mid-day because standard $12:00$ is taken as the start of the day. So remember that a.m. stands for ante meridiem which means before mid-day and p.m. stands for post meridiem which means after mid-day. So when the time changes and becomes after mid-day ($12:05$) we use p.m. to denote that afternoon has started.