NCERT Solutions for Class 10 Maths Chapter 14 Statistics Exercise 14.2

CBSE X Related Questions

  • 1.
    Two water taps together can fill a tank in $8\frac{8}{9}$ hours. The tap of larger diameter takes 4 hours less than the smaller one to fill the tank separately. Find the time in which each tap can separately fill the tank.


      • 2.
        Prove that :
        \(\frac{\tan \theta}{1 - \cot \theta} + \frac{\cot \theta}{1 - \tan \theta} = 1 + \tan \theta + \cot \theta\).


          • 3.
            The graph of \(y = f(x)\) is given. The number of zeroes of \(f(x)\) is :

              • 0
              • 1
              • 3
              • 2

            • 4.
              If the zeroes of a polynomial p(x) are $-3$ and 8, then p(x) equals

                • $x^2 + 5x - 4$
                • $(x + 3) (-x + 8)$
                • $a(x^2 + 5x - 24)$
                • $x^2 - 24$

              • 5.
                A kite is flying at a height of \(60 \text{ m}\) above the ground level. Ravi, standing at the roof of the house is holding the string straight and observes the angle of elevation of kite as \(30^{\circ}\). From the bottom of the same building, the angle of elevation of kite is \(45^{\circ}\). Find the length of the string and height of roof from the ground. (Use \(\sqrt{3} = 1.73\))


                  • 6.
                    Use graphical method to solve the system of linear equations : $x = -3$ and $5x - 2y = -5$.

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