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Professor Absent minded forgets numbers larger than 15. He tells his wife I can remember any number upto 100 by remembering the 3 numbers obtained as reaminders when the number is divided by 3,11 and 13 respectively. For eg. (2,6,4) is 17, Prof. remembers that he had

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In a exam there are 26 number of question. For one write question add 8 marks and for one wrong 5 marks subtract. One candidate answered all questions. His marks is 0. How many answers was correct? A squirrel runs up a cylindrical post , in a perfect spiral path making one circuit for each rise of 4 feet . How many feet does the squirrel travels if the post is 16 feet tall and 3 feet in circumference?