All questions on Maths

i need help with a maths question.


if its 3:21pm what time will it be in 100mins?

The easiest way to think about this is to ask how many hours and minutes is 100 minutes? There are 60 minutes in an hour so 100 minutes = 1 hour and 40 minutes (100-60=40). So with 3.21 we start by adding one hour to get 4.21. Now we have to add another 40 minutes. We know that to get to 5.00pm from 4.21pm we're going to need 39 minutes (because there are 60 minutes in an hour and 60-21 = 39). So seeing as we've got 40 minutes to add on then we need to add another one minute on top. So 4.21 plus 40 minutes takes us to 5.01pm and that's the final answer!
17 February 2011
Thank you lots!
17 February 2011
Add an answer

Similar questions