1)

Find the tim between 2 and 3 O'clock at which the minute hand and the hour hand overlap


A) $10 \frac{10}{11}$min past $2$

B) $10 \frac{12}{11}$min past $2$

C) $9 \frac{10}{11}$min past $2$

D) $9 \frac{12}{11}$min past $2$

Answer:

Option A

Explanation:

When the two hands overlap, the angle between them is $0^{o}$.

$\theta = \mid \frac{11}{2}m-30h \mid$

$\therefore \theta=0^{o}$ and $h=2$

$\frac{11}{2}m=30 \times 2$

$m= \frac{120}{11}=10\frac{10}{11}$min past ${2}$