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Q.
How much does a clock lose per day, if its hands coincide ever 65 minutes ?
A.
1440/143 min
B.
184/13 min
C.
1425/18 min
D.
541/9 min
View Answer
Correct choice: C
Explanation:
55 min. spaces are covered in 60 min. 60 min. spaces are covered in ((60/55) x 60) min = 720/11 min. Loss in 65 min. = (720/11 - 65 ) = 5/11 Loss in 24 hrs = (5/11 x 1/65 x 24 x 60)min = 1440/143 min.
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