Iift 2010 Question 23
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IIFT 2010
It is given that sum of the first (x-1) numbers is equal to sum of the numbers from (x-1) to 49
or, sum of (x-1) numbers = sum of first 49 numbers - sum of first x numbers
x(x-1) 49 x 50 x(x+1)
2 = 2 - 2
On solving, we get x = 35
Hence, option C is the correct answer.