Practicing Success
At what angle the hour and minute hands of a clock are inclined at 15 min past 5? |
$64^{\circ}$ $58\frac{1}{2}^{\circ}$ $72\frac{1}{2 }^{\circ}$ $67\frac{1}{2}^{\circ}$ |
$67\frac{1}{2}^{\circ}$ |
The correct answer is Option (4) → $67\frac{1}{2}^{\circ}$ TIME = 15 MIN PAST 5 ANGLE = (60 H -11MINUTE ) ÷ 2 = (60 × 5 - 11 × 15) ÷ 2 = (300 - 165) ÷ 2 = 135 ÷ 2 = 67.5 6712 |