16.144, 121, 100, 81, ?

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RRB TC CC Exam (Bangalore) 2007 click here to view all questions

What will come in place of the question mark (?) in the following questions?
144, 121, 100, 81, ?

A75

B65

C70

D64

Nithin K ? Nov 26 '2016 at 13:19

Answer is : 64

Explanation:

\(\text{sequence is } 12^2,11^2,10^2,9^2,8^2\)

\(12 \times12 = 144\)

\(11\times11 = 121\)

\(10 \times 10 = 100\)

\( 9 \times 9 = 81\)

\( 8 \times 8 = 64\)

So Answer is : 64

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Answer is : 64 Explanation: \(\text{sequence is } 12^2,11^2,10^2,9^2,8^2\) \(12 \times12 = 144\) \(11\times11 = 121\) \(10 \times 10 = 100\) \( 9 \times 9 = 81\) \( 8 \times 8 = 64\) So Answer is : 64 Nithin K ? answered Nov 26 '2016 at 13:19 All Comments

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