Question

2 hr 25 min - 8hr 10 min

Answer 1

2hrs 25min -8hrs 10min
=1 hr =60 min
so,2hr=60×2=120min.
so,8hr=60×8=480
now,
120+25=145min.
480+10=490min
finally, 145-490
=(-345) =-6hrs15 min.
hope its correct and helpful