Question

Through how many degrees does the hour hand of a clock turn in $5$ minutes?

• A. ${\left(\frac{1}{2}\right)}^{\circ }$
• B. ${\left(3\frac{1}{2}\right)}^{\circ }$
• C. $5^{\circ }$
• D. ${\left(2\frac{1}{2}\right)}^{\circ }$

Answer 1

The correct option is D ${\left(2\frac{1}{2}\right)}^{\circ }$

In 1 hour, the hour hand moves $\frac{1}{12}of360degrees=30degrees$

Thus, in 60 minutes, the hour hand moves 30 degrees.

So, in 1 minute, the hour hand moves $\frac{30}{60}$ degrees.

So, in 5 minutes, it moves: $\frac{30}{60}\times 5=2\frac{1}{2}degrees$