In the following question, Select the number which can be placed at the sign of question mark (?) from the given alternatives.
The pattern followed is that in each column :
$$(4)^2+(3)^2=16+9=25=(5)^2$$
$$(5)^2+(12)^2=25+144=169=(13)^2$$
$$(8)^2+(x)^2=(17)^2$$
=> $$x^2=289-64=225$$
=> $$x=\sqrt{225}=15$$
=> Ans - (A)
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