Practice Find hands position of the clock - verbal reasoning Online Quiz (set-1) For All Competitive Exams
Q-1) How many rotations will the hour hand of a clock complete in 72 hours?
(a)
(b)
(c)
(d)
Number of rotations = $72/12$ = 6
Q-2) How many times are the hour hand and the minute hand of a clock at right angles during their motion from 1.00 p.m. to 10.00 p.m.?
(a)
(b)
(c)
(d)
(e)
The duration from 1.00 p.m. to 10.00 p.m. is 9 hours and during each of these 9 hours the hands of a clock are at right angles twice.
So, required number = 9 × 2 = 18.
Q-3) How many times in 24 h the hands of a clock are in straight line but opposition in directions?
(a)
(b)
(c)
(d)
The hands of a clock are in the same straight line (but opposite in direction) 11 times in every 12 h, because between 5 and 7 they point in opposite direction at 6 O' clock only.
Therefore, in a day (24 h) the hands points in the opposite direction (2 × 11) = 22 times.
Q-4) How many times the hand of a clock are at right angle in a day?
(a)
(b)
(c)
(d)
We know that the hands of a clock are at right angle twice in every hour but between 2 and 4 O' clock there is a common position at 3 O' clock and also between 8 and 10 O' clock there is common position at 9 O' clock.
So, they are at right angles 22 times in 12 h and therefore, in 24 h or in a day they are at right angle 44 times.
Q-5) How many times in a day, are the hands of a clock in straight line but opposite in directions?
(a)
(b)
(c)
(d)
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 O' clock only).
So, in a day, the hands point in the opposite directions 22 times.
Q-6) How many times do the hands of a clock coincide in a day?
(a)
(b)
(c)
(d)
The hands of a clock coincide 11 times in every 12 hours (Since between 11 and 1, the coincide only once, i.e. at 12 O' clock).
Q-7) How many times are the hands of a clock at right angle in a day?
(a)
(b)
(c)
(d)
In 12 hours, they are at right angles 22 times
Therefore, In 24 hours, they are at right angles 44 times.
Q-8) How many times in a day, the hands of a clock are straight?
(a)
(b)
(c)
(d)
In 12 hours, the hands coincide or are in opposite direction 22 times.
Therefore, In 24 hours, the hands coincide or are in opposite direction 44 times a day.
Q-9) A clock gains 5 minutes in one hour. Therefore, the angle traversed by the minute hand in 1 hour is
(a)
(b)
(c)
(d)
Clearly, the minute hand traverses 65 minutes in 1 hour.
Therefore, Required angle = (360/60 × 65). = 390.
Q-10) From 1 O' clock afternoon upto 10 O' clock in the night, the hands of a clock will be at right angle ______ Times.
(a)
(b)
(c)
(d)
Time period from 1 O' clock afternoon to 10 O' clock night = (10 - 1)h = 9 h
As we know, hands are at right angle 2 times in an hour.
Hence, in 9 h they will be at right angle 9 × 2 = 18 times