91. $$\left( {{3^{25}} + {3^{26}} + {3^{27}} + {3^{28}}} \right)$$ is divisible by :
92. $${\text{999}}\frac{{998}}{{999}} \times 999$$ is equal to :
93. $$0.\overline {001} $$ is equal to -
94. If the sum of two numbers is 3 and the sum of their squares is 12, then their product is equal to -
95. A man spends $$\frac{1}{3}$$ of his income on food, $$\frac{2}{5}$$ of his income on house rent, $$\frac{1}{5}$$ of his income on clothes. If he still has Rs. 400 left with him, his income is -
96. By which number should 0.022 be multiplied so that product become 66 ?
97. $$1 + \frac{1}{2} + \frac{1}{4} + \frac{1}{7} + \frac{1}{{14}} + \frac{1}{{28}}$$ is equal to :
98. Which one of the following is a factor of the sum of first twenty-five natural numbers ?
99. The value of : $$\frac{{3.157 \times 4126 \times 3.198}}{{63.972 \times 2835.121}}$$
100. Five times of a positive integer is 3 less than twice the square of that number. The number is -
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