It takes 20 minutes and 30 seconds to prepared a strawberry pie. It takes 45 minutes to bake it. How long does the whole procedure take?
Given:-
time taken to prepared strawberry pie = 20 minutes & 30 second
time taken to baked = 45 minutes
Required:-
time taken in whole procedure = ?
Solution :
we can solve it by different method first we change total time period in same unit (like minutes change in seconds) and then add all time to b taken on it. In second method we can solve it by using decimal for second (like 20.30 minutes) and add them.
Now we solve it with simplest method :-
Time taken in whole procedure = 20.30 minutes + 45 minutes
Time taken in whole procedure = 65 .30 minutes
we can convert it in seconds if required 65.30 x 60 = 3918 seconds
or hours = 65.30 / 60 = 1.08 hours.
The first step to finding the correct answer to this problem is fairly easy and that is conversion. We want to get everything into one unit, so add the minutes together.
45 minutes + 20 minutes= 65 minutes
Now convert minutes into seconds by multiplying 65 by 60.
(60seconds/1 minute) x (65 minutes) the minute units would cancel out leaving you with seconds as your unit.
65x60=3900 <= don't forget to also add in the 30 seconds from earlier also, so the answer would be 3930 seconds
Or if you want to convert it into minutes then just divide it by 60, double check it with conversion of seconds to minutes.
(1 minute/ 60 seconds) x (3930 seconds) important note for conversion: make sure that your seconds cancels out and you are left with minutes as your unit.
3930/60= 65.5 minutes
if you want to convert it to hours then divide 65.5 by 60
( 1 hour/ 60 minutes) x (65.5 minutes) <= for conversion answer would be ~ 1.09 hours
Hopefully this helps.
65minutes and 30 seconds