NCERT Solutions for Class 10 Maths Chapter 12 Exercise 12.1

CBSE X Related Questions

  • 1.
    Three coins are tossed together. The probability that at least one head comes up is

      • \(\dfrac{3}{8}\)
      • \(\dfrac{7}{8}\)
      • \(\dfrac{1}{8}\)
      • \(\dfrac{3}{4}\)

    • 2.
      Find the smallest value of $p$ for which the quadratic equation $x^2 - 2(p + 1)x + p^2 = 0$ has real roots. Hence, find the roots of the equation so obtained.


        • 3.
          In a trapezium \(ABCD\), \(AB \parallel DC\) and its diagonals intersect at \(O\). Prove that \[ \frac{OA}{OC} = \frac{OB}{OD} \]


            • 4.
              Find 'mean' and 'mode' of the following data : Frequency Distribution Table
              Class0 – 1515 – 3030 – 4545 – 6060 – 7575 – 90
              Frequency118157109


                • 5.
                  The sum of a number and its reciprocal is \(\frac{13}{6}\). Find the number.


                    • 6.
                      Using prime factorisation, find the HCF of 144, 180 and 192.

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