AIMO 2017 (Grade 9) – A Geometry Problem & Solution in image

Question I have four children. The age in years of each child is a positive integer between 2…
Question and Solution in Images Alternate Solution
Question If the digits 2,3,7 and 6 are arranged randomly so as to form a four-digit number,then how…
Answer We assume “natural numbers here includes the number zero” (an old convention – may not be valid…
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Given a triangle ABC with AB = AC, BC = AD and angle (BAC) = 20. Find angle(ADB)….