Question

At what angle the hands of a clock inclined at 15 minutes past 5 ?

• A. $72{\frac{1}{2}}^{\circ }$
• B. $67{\frac{1}{2}}^{\circ }$
• C. $58{\frac{1}{2}}^{\circ }$
• D. $64{\frac{1}{2}}^{\circ }$

Answer 1

The correct option is B $67{\frac{1}{2}}^{\circ }$

Angle = $30x-\frac{11}{2}y$
Angle = $30\times 5-\frac{11}{2}\times 15$
= $150-\frac{165}{2}$
= $\frac{135}{2}=67{\frac{1}{2}}^{\circ }$
Ans (B)