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If ' θ ' is the angle of elevation then here tan θ  = length of Pole/ Shadow = 21/ 7 √3 = 3/√3 = √3 = tan 60 or θ  = 60°
3 15 35 63 99 ?
Direction: Which of the following will replace ‘?’ in the given question?
342, ‘?’, 420, 462, 506, 552, 60
642 202 541 312 523 ?
...72 85 103 126 154 ?
...5     9      36      ?       177      213
...42Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 43Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 46Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â ...
4Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 14 Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 130 Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 512 Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â...
6 16 ? 244 1,245 7,506 52,591
...40    42    87    266    ?     5366
The following expressions form a series followed by a (?). Find the odd one out first and then find that what will come in place of the question mark (?...
