A) 42
B) 58
C) 90
D) 120
Correct Answer: D
Solution :
Terms taken alternately form two sequences. These are\[3,24,63?\] | \[6,30,72,132\] |
\[3={{2}^{2}}-1\] | \[6={{2}^{2}}+2\] |
\[24={{5}^{2}}-1\] | \[30={{5}^{2}}+5\] |
\[63={{8}^{2}}-1\] | \[72={{8}^{2}}+9\] |
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