131.
The greatest of $$\sqrt 2 ,$$  $$\root 6 \of 3 ,$$  $$\root 3 \of 4 ,$$  $$\root 4 \of 5 $$   is = ?

132.
Which of the following statement(s) is/are TRUE?
$$\eqalign{ & {\text{I}}.\sqrt {121} + \sqrt {12321} + \sqrt {1234321} = 1233 \cr & {\text{II}}.\sqrt {0.64} + \sqrt {64} + \sqrt {36} + \sqrt {0.36} > 15 \cr} $$

137.
If $${\text{A}} = \frac{1}{{0.4}} + \frac{1}{{0.04}} + \frac{1}{{0.004}} + ....{\text{ upto 8 terms,}}$$        then what is the value of A?

139.
Let x = $$\root 6 \of {27} - \sqrt {6\frac{3}{4}} $$   and y = $$\frac{{\sqrt {45} + \sqrt {605} + \sqrt {245} }}{{\sqrt {80} + \sqrt {125} }},$$    then the value of x2 + y2 is:

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