100+ Clock Aptitude Questions and Answers - 1

Ans: B

The hands of a clock point in opposite directions (in the same straight line) 11 times in every 12 hours (Because between 5 and 7 they point in opposite directions at 6 0’clock only).

So, in a day, the hands point in the opposite directions 22 times.

Ans: C

In 12 hours, the hands coincide or are in opposite directions 22 times.

∴ In 24 hours, the hands coincide or are in opposite direction 44 times a day.

Ans: C

The hands of a clock coincide 11 times in every 12 hours (since between 11 and 1, they coincide only once i.e., at 12 o’clock).

∴ the hands coincide 22 times in a day.

Ans; C

In 12 hours, they are right angles times.

∴ In 24 hours, they are at right angles 44 times.

Ans: D

At 5 o’clock, the hands are 25 min. spaces apart.

To be at right angles and that too between 5.30 and 6, the minute hand has to gain (25 + 15) = 40 min. spaces.

55 min. spaces are gained in 60 min.

40 min. spaces are gained in $$({60} / {55} × 40)$$ min. = $$43 {7} / {11}$$ min.

∴ Required time = $$43{7} / {11}$$ min. past 5.