NCERT Solutions for Class 10 Maths Chapter 15 Probability Exercise 15.2

CBSE X Related Questions

  • 1.
    If \(PQ\) and \(PR\) are tangents to the circle with centre \(O\) and radius \(4 \text{ cm}\) such that \(\angle QPR = 90^{\circ}\), then the length \(OP\) is

      • \(4 \text{ cm}\)
      • \(4\sqrt{2} \text{ cm}\)
      • \(8 \text{ cm}\)
      • \(2\sqrt{2} \text{ cm}\)

    • 2.
      If for a data, median is 5 and mode is 4, then mean is equal to :

        • 7
        • 11
        • \(\frac{11}{2}\)
        • \(\frac{14}{3}\)

      • 3.
        The graph of a quadratic polynomial f(x) passes through (5,0), (0, -1) and (-2, 0). The two factors of the polynomial are

          • \((x + 2), (x - 5)\)
          • \((x + 5), (x - 2)\)
          • \((x + 1), (x - 5)\)
          • \((x - 1), (x + 2)\)

        • 4.
          The value of k for which sum of the zeroes of the polynomial \(p(x) = 3x^2 - kx + 6\) is 2, is

            • 2
            • \(-6\)
            • \(-2\)
            • 6

          • 5.
            In an A.P., if $a_{14} - a_8 = 24$, then the common difference of the A.P. is

              • $6$
              • $4$
              • $\pm 4$
              • $3$

            • 6.
              It is given that \(\triangle ABC \sim \triangle EDF\). Which of the following is not true?

                • \(\frac{\text{Perimeter of } \triangle ABC}{\text{Perimeter of } \triangle EDF} = \frac{AB}{ED}\)
                • \(\frac{AB}{ED} = \frac{AC}{EF}\)
                • \(\angle A = \angle D, \angle C = \angle F\)
                • \(\frac{AB + BC}{AC} = \frac{ED + DF}{EF}\)

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