Question

3h 35 min 45 sec and 25 min 23 sec, answer 4 h 1 min 8 sec solution please

Answer 1

3h 35min 45sec
+. 25min 23sec
--------------------------------
3h 60 min 8 sec
----------------------------------
or 4h 1min 8 sec

Answer 2

On adding 3hr 35mi 45sec with 25mi 23sec you get the answer 4hr 1min 8sec
i.e.
3 35 45
+ 25 23
-------------------
= 3 60 68 =60sec = 1min 8sec ...... (1)
=60min = 1hr ......(2)
on adding 1min of equation (1) in (2)
= 1hr 1min
on adding 1hr of equation (2) in 3hr
= 4hr
and finally, we get
4hr 1min 8sec