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How to design an alarm clock for blind people? अंधा लोगों के लिए अलार्म घड़ी कैसे डिज़ाइन करें?

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Find the angle between the minute hand and the hour hand of a clock at 7.20 am
मिनट के हाथ और घड़ी के घंटे के बीच कोण को सुबह 7.20 बजे के बीच कोण खोजें
0 answers asked Sep 7, 2020 in General Knowledge by anonymous
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