Maths Olympiad Exam

Q. Find for how many positive integers n with n

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Maths Olympiad Other Question

Q. Let n be the largest integer for which 14n has exactly 100 digits. Counting from right to left, find the 68th digit of n Q. In a bag there are 13 red, 5 blue, 1 white and 9 green balls. Without looking into the bag determine the least No of balls that can be drawn such that three of them are of same colour