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prelims Test Series 2019
बेसिक इंग्लिश का दूसरा सत्र (कक्षा प्रारंभ : 22 अक्तूबर, शाम 3:30 से 5:30)
Weekend Puzzle (Aug 20, 2016)

If three clocks of a church whose frequencies are 1 per hour, 1 per 45 minutes and 4 per hour, strike together at 6 am. When will they strike together next?

(a) 10 am (b) 9 am
(c) 12 pm (d) 8 am


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