NCERT Solutions for Class 10 Maths Chapter 15 Probability Exercise 15.1

CBSE X Related Questions

  • 1.
    The natural number 1 is :

      • a prime number.
      • a composite number.
      • prime as well as composite.
      • neither prime nor composite.

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


        • 3.
          A bag contains 25 balls. Some of them are yellow and others are green. One ball is drawn at random. If probability of getting a green ball is $3/5$, then find the number of yellow balls.


            • 4.
              Prove that: $\frac{\tan \theta}{1 - \cot \theta} + \frac{\cot \theta}{1 - \tan \theta} = 1 + \tan \theta + \cot \theta$


                • 5.
                  Prove that :
                  \(\frac{\tan \theta}{1 - \cot \theta} + \frac{\cot \theta}{1 - \tan \theta} = 1 + \tan \theta + \cot \theta\).


                    • 6.
                      If the zeroes of a polynomial p(x) are $-3$ and 8, then p(x) equals

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

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