| Direction: What will come in place of the question mark (?) in the following questions? |
| 144, 121, 100, 81, ? |
A) 75
B) 65
C) 70
D) 64
Correct Answer: D
Solution :
\[\begin{array}{*{35}{r}} {} & {} & {} & {} & (64) \\ 144 & 121 & 100 & 81 & ? \\ \downarrow & \downarrow & \downarrow & \downarrow & \downarrow \\ {{(12)}^{2}} & {{(11)}^{2}} & {{(10)}^{2}} & {{(9)}^{2}} & {{(8)}^{2}} \\ \end{array}\]
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