UGC NET Paper 1 GA 2006 June Solved Paper

Question : 25 of 50

Marks: +1, -0

At what time between 4 and 5 O’clock will the hands of a watch point in opposite directions?

45 min. past 4
40 min. past 4
$50 4/11$ min. past 4
$54 6/11$ min. past 4

Solution:

At 4 O’ clock the hands of the watch are 20 minute space a part. To be in opposite direction, they must be 30 minute space past. Minute hand will have to gain 50 minute spaces.
55 minute spaces are gained in 50 minute.
∴ 50 minute spaces are gained in

=60/55×50=54 6/11

minute
∴ Required time

=54 6/11

minute past 4

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