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Q.
At what time between 5.30 and 6 will the hands of a clock be at right angles?
A.
(43 + 5/11) min past 5
B.
(43 + 7/11) min pats 5
C.
5
D.
7
View Answer
Correct choice: B
Explanation:
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
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