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Let A={n∈N:n is a 3-digit number}B={9k+2:k∈N} and C={9k+l:k∈N} for some l (0<l<9)If the sum of all the elements of the set A∩(B∪C) is 274×400, then l is equal to |
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Answer» Let A={n∈N:n is a 3-digit number} B={9k+2:k∈N} and C={9k+l:k∈N} for some l (0<l<9) If the sum of all the elements of the set A∩(B∪C) is 274×400, then l is equal to |
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