Question
If 152,   242,    x ,  332, Â
 404,    314, then find the value of (2x – 1)? In each of the following questions the number series is given. One term of the series is denoted by x. You have to calculate of value of x and by using the value of x, you have to solve the following questions.Solution
Sum of the digits = 8 Then, 2(611) – 1 = 1222 – 1 = 1221
If (a + b) = 8 and ab = 10, then find the value of (a2Â + b2).
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