61. If $$x = a + \frac{1}{a}$$ and $$y = a - \frac{1}{a},$$ then the value of x4 + y4 - 2x2y2 is?
62. If p = 101, then the value of $$\root 3 \of {p\left( {{p^2} - 3p + 3} \right) - 1} $$ is?
63. If 50% of (p - q) = 30% of (p + q), then p : q is equal to?
64. If x : y = 2 : 1, then (5x2 - 13xy + 6y2) is equal to ?
65. If $$\frac{a}{3} = \frac{b}{2}{\text{,}}$$ then the value of $$\frac{{2a + 3b}}{{3a - 2b}}\,{\text{is?}}$$
66. If $$\frac{{2x - y}}{{x + 2y}} = \frac{1}{2}{\text{,}}$$ then value of $$\frac{{3x - y}}{{3x + y}}\,{\text{is?}}$$
67. If $$x + \frac{1}{x} = 5{\text{,}}$$ then $$\frac{{2x}}{{3{x^2} - 5x + 3}}$$ is equal to?
68. $${\text{If }}\sqrt {1 - \frac{{{x^3}}}{{100}}} = \frac{3}{5}{\text{,}}$$ then x equals to?
69. $${\text{If }}\,\sqrt {1 + \frac{x}{9}} = \frac{{13}}{3}{\text{,}}$$ then the value of x is?
70. $${\text{If }}\frac{{4\sqrt 3 + 5\sqrt 2 }}{{\sqrt {48} + \sqrt {18} }} = a + b\sqrt 6 {\text{,}}$$ then the value of a and b are respectively?
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