Question

Between $2$ O'clock to $10$ O'clock, how many times the hands of a clock are at right angles?

• A. $14$
• B. $12$
• C. $16$
• D. $15$

Answer 1

Answer: (A)

$14$

Between $2$ & $4$ o'clock and $8$ & $10$ o'clock, the hands are at right angles thrice in each case.
Between $4$ and $8$ o'clock, the hands are at right angles eight times.
So, the total number of times the hands are at right angles.
$=3+3+8=14$.