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Anil Saigal 05/06/2015 Problem #1 How many times do the two hands of a clock point in the same direction between 6:00 am and 6:00 pm of a single day? How far is the horizon from the top of a 125.7-meter-high lighthouse? (The earth can be considered spherical with a circumference of 40,000 km.) ---------------------------------------------------------------------------------------------------------- Please send your solutions to mr.asaigal@gmail.com. -------------------------------------------------------------------------------------------------------- ![]() You may also access this article through our web-site http://www.lokvani.com/ |
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