The y - ordinates of $A_8$ is… | XAT 2010 Question Paper

XAT 2010Quantitative AbilityFunctions, Graphs and StatisticsMEDIUM+1 / −0.25

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Let $A_{1},A_{2},.....A_{n}$ be then points on the straight - line y = px + q. The coordinates of $A_{k}is(X_{k},Y_{k})$ , where k = 1, 2, ...n such that $X_{1},X_{2}....X_{n}$ are in arithmetic progression. The coordinates of $A_{2}$ is (2,–2) and $A_{24}$ is (68, 31).

The y - ordinates of $A_8$ is

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