Question

If you leave your house at 2.47pm

and travel for one and three quarter

hours, what time will you arrive at your

destination?

Answer 1

One and three quarter hours is 1 h and 3/4·60 min = 1 h 45 min. So:

$$2\text{ h 47 min}+\text{ 1 h 45 min}=4 \text{ h 32 min}.$$