Question

In a clock, the minute hand completed two hours and came back to its original position. What is the angle made by the minute hand in two complete rotations?

• A. ${90}^{\circ }$
• B. ${180}^{\circ }$
• C. ${360}^{\circ }$
• D. ${720}^{\circ }$

Answer 1

The correct option is D ${720}^{\circ }$

The minute hand completed two hours. This means that it has rotated twice.

In one compelete round, it will rotate 360${}^{\circ }$. In two hours, it completes two rounds.

360${}^{\circ }$ + ${360}^{\circ }$ = ${720}^{\circ }$

Therefore, in two hours, the minute hand rotates 720${}^{\circ }$.