Question

If a bank is open for business from 10 in the morning to 4:30 in the evening, how long is it open?

Answer 1

Here, in 24 hours clock, 4:30 in the evening = 16:30

Hours	Minutes
1 6	3 0	Closes
- 1 0	0 0	Opens
6	3 0

∴ Bank opens for  6 hours 30 minutes.