1)

What is the angle between the minute and the hour hand of a clock at 3 hours 40 minutes?


A) $20^{o}$

B) $70^{o}$

C) $90^{o}$

D) $130^{o}$

Answer:

Option D

Explanation:

The angle between the hands can be calculated by $\theta=$$\mid \frac{11}{2} m 4-30h  \mid$ , where m is minutes and h is hour.

Here m= 40 and h=3

$\therefore \theta=\mid \frac{11}{2}\times - 30 \times 3 \mid$

$=\mid 200-90 \mid$

=$130^{o}$