Question

value of
$\sqrt{10 + \sqrt{25 + \sqrt{108 + \sqrt{154 + \sqrt{225} } } } }$
is

Answer 1

Start solving from the innermost root ie, root 225=15 then add it up with 154 as  given, we get root 169=13 the add again. continue adding it up. at last we get root 16=4

so 4 is your answer