Given that the numbers in 23 the rows and columns, of the following board, are in arithmetic progression, find the value of X. 64 (A) 77 |(B) 78 101 |(C) 79 An arithmetic progression is a sequence of numbers such that each term of the sequence can be obtained from the preceding number adding a fixed quantity. For example, the 2, 5, 8, 11, 14,.., 3n-1,... formed an arithmetic progression. |(D) 80

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