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  • Question 1
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    The value of \(1 \div\left[1 \frac{1}{8} \div \frac{\left(3 \frac{1}{5}+\frac{3}{5}\right) \div \frac{8}{5}}{\left\{\frac{5}{8}+\left(\frac{1}{8} \div \frac{1}{3}\right)\right\}}\right]\)

  • Question 2
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    In a lottery, there are 10 prizes and 25 blanks. A lottery is drawn at random. What is the probability of getting a prize?

  • Question 3
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    Two dice are tossed. The probability that the total score is a prime number is:

  • Question 4
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    If \(\frac{x-a^{2}}{b+c}+\frac{x-b^{2}}{c+a}+\frac{x-c^{2}}{a+b}=4(a+b+c),\) then \(x=?\)

  • Question 5
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    The average monthly salary of 660 workers in a factory is Rs. 380. The average monthly salary of officers is Rs. 2100 and the average monthly salary of the other workers is Rs. 340. Find the number of other workers.

  • Question 6
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    A tank is filled in 5 hours by three pipes A, B and C. The pipe C is twice as fast as B and B is twice as fast as A. How much time will pipe A alone take to fill the tank?

  • Question 7
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    If \(x \neq 0, y \neq 0\) and \(z \neq 0\) and \(\frac{1}{x^{2}}+\frac{1}{y^{2}}+\frac{1}{z^{2}}=\frac{1}{x y}+\frac{1}{y z}+\frac{1}{z x}\) then the relation among \(x, y, z\) is?

  • Question 8
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    A bag contains 4 white, 5 red and 6 blue balls. Three balls are drawn at random from the bag. The probability that all of them are red, is:

  • Question 9
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    If y=a sinx+b cosx,then y2+(dy/dx)2is a

  • Question 10
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    A man travels equal distances of his journey at 40, 30 and 15 km/h. respectively. Find his average speed for whole journey.

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