Question

A tired corker slept at 9.45 pm If he rose at 12 noon for how many hours did he sleep?

• A. 9 hours 45 minutes
• B. 8 hours 45 minutes
• C. 9 hours 40 minutes
• D. None of these

Answer 1

The correct option is A 9 hours 45 minutes

Time when worker sleep = 9 : 45 P.M.
Time when he woke up = 12 noon
$\because$ Time period when he did not sleep in a day is between 12 noon to 9:45 i.e. for 9:45 minutes
$\therefore$ 24 hours - 9 hours 45 minutes