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The integers from 1 to 1805 are entered sequentially in 12 columns (numbered 1 to 12); i.e. Row 1 contains the numbers 1 to 12, Row 2 contains the next 12 numbers and so on. If the number 1300 occurs in row p and column q, then the value of p + q is

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4 Women & 6 men have to be seated in a row given that no two women can sit together. How many different arrangements are there. The units digit of the sum of the first 36 positive integers (that is 1 + 2 + 3 + ... + 36 ) is