NCERT Solutions for Class 9 Maths Chapter 13 Exercise 13.8 Solutions

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NCERT Solutions for Class 9 Maths Chapter 13 Exercise 13.8 Solutions are based on the volume of a sphere.

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Read More: NCERT Solutions For Class 9 Maths Chapter 13 Surface Areas and Volumes

Exercise Solutions of Class 9 Maths Chapter 13 Surface Areas and Volumes

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CBSE X Related Questions

  • 1.
    Find length and breadth of a rectangular park whose perimeter is \(100 \, \text{m}\) and area is \(600 \, \text{m}^2\).


      • 2.
        Let $p$, $q$ and $r$ be three distinct prime numbers. Check whether $pqr + q$ is a composite number or not. Further, give an example for three distinct primes $p$, $q$, $r$ such that
        (i) $pqr + 1$ is a composite number
        (ii) $pqr + 1$ is a prime number


          • 3.
            The perimeters of two similar triangles are 22 cm and 33 cm respectively. If one side of the first triangle is 9 cm, then find the length of the corresponding side of the second triangle.


              • 4.
                If the sum of first n terms of an A.P. is given by \( S_n = \frac{n}{2}(3n+1) \), then the first term of the A.P. is

                  • 2
                  • \( \frac{3}{2} \)
                  • 4
                  • \( \frac{5}{2} \)

                • 5.
                  Find the sum of first 20 terms of an A.P. whose n\(^{th}\) term is given by \(a_n = 5 + 2n\). Can 52 be a term of this A.P. ?


                    • 6.
                      Three coins are tossed together. The probability that at least one head comes up is

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

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