Home
Class 14
MATHS
If the radius of a sphere is increase...

If the radius of a sphere is increased by 2 cm, then its surface area increases by 352 cm2. The radius of the sphere before the increase was (a) 3 cm      (b) 4 cm   (c) 5 cm     (d) 6 cm

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • TRUE DISCOUNT

    RS AGGARWAL|Exercise All Questions|26 Videos

Similar Questions

Explore conceptually related problems

If the radius of a sphere is increased by 2 cm. Its surface area increased by 352 cm^(2) . The radius of sphere before change is : (use pi = (22)/(7) )

If the radius of a sphere is increased by 2cm.its surface area increased by 352 cm^(2) .The radius of sphere before change is : (use pi(22)/(7) )

When the radius of a sphere is increased by 5 cm, its surface area increases by 704 cm^2 . The diameter of the original sphere, is (Take pi = (22)/(7))

The area of a circle is increased by 22 cm' when its radius is increased by 1 cm. The original radius of the circle is

The area of a circle is increased by 22 cm^2 its radius is increased by 1 cm. The original radius of the circle is

If the radius of a sphere is measured to be ( 2.1 +- 0.05) cm.Calculate the surface area ( in cm^(2) )

If the volume of a sphere is divided by its surface area, the result is 27 cm. The radius of the sphere is (a) 9 cm (b) 36 cm (c) 54 cm (d) 81 cm

RS AGGARWAL-VOLUME AND SURFACE AREAS-All Questions
  1. Surface area of a sphere is 2464 cm2. If its radius be doubled, the...

    Text Solution

    |

  2. If the radius of a sphere is doubled, how many times does its volum...

    Text Solution

    |

  3. If the radius of a sphere is increased by 2 cm, then its surface ar...

    Text Solution

    |

  4. If the measured value of the radius is 1.5% larger, the percentage ...

    Text Solution

    |

  5. The volumes of two spheres are in the ratio of 64 : 27. The ratio o...

    Text Solution

    |

  6. If the surface areas of two spheres are in the ratio of 4 : 25, the...

    Text Solution

    |

  7. If the volume and surface area of a sphere are numerically the same...

    Text Solution

    |

  8. If three metallic spheres of radii 6 cms, 8 cms and 10 cms are melt...

    Text Solution

    |

  9. A solid metallic sphere of radius 8 cm is melted and recast into sp...

    Text Solution

    |

  10. A spherical ball of lead 3cm in diameter is melted and recast into ...

    Text Solution

    |

  11. If a solid sphere of radius 10 cm is moulded into 8 spherical solid...

    Text Solution

    |

  12. A hollow spherical metallic ball has an external diameter 6 cm and ...

    Text Solution

    |

  13. A solid piece of iron of dimensions 49xx33xx24 cm is moulded int...

    Text Solution

    |

  14. How many bullets can be made out of a cube of lead whose edge measu...

    Text Solution

    |

  15. The volume of the largest sphere which can be carved out of a cube ...

    Text Solution

    |

  16. How many lead shots each 3 mm in diameter can be made from a cuboid...

    Text Solution

    |

  17. A sphere and a cube have equal surface areas. The ratio of the volu...

    Text Solution

    |

  18. The ratio of the volume of a cube so that of a sphere which will fi...

    Text Solution

    |

  19. The volume of the largest possible cube that can be inscribed in a ...

    Text Solution

    |

  20. A right circular cylinder and a sphere are of equal volumes and the...

    Text Solution

    |