Home
Class 10
MATHS
The cross-section of a railway tunnel is...

The cross-section of a railway tunnel is a square surmounted by a semi-circle as shown in the figure.

The tunnel is 50 m long. Find the cost of plastering the internal surface of the tunnel (excluding the floor) at the rate of Rs 10 per `m^(2).`

Text Solution

Verified by Experts

The correct Answer is:
`12,500`
Promotional Banner

Topper's Solved these Questions

  • CYLINDER, CONE AND SPHERE

    ICSE|Exercise EXERCISE 20 (A)|36 Videos

  • CYLINDER, CONE AND SPHERE

    ICSE|Exercise EXERCISE 20 (B)|17 Videos

  • CONSTRUCTIONS (CIRCLES)

    ICSE|Exercise EXERCISE|39 Videos

  • EQUATION OF A LINE

    ICSE|Exercise EXERCISE 14(E)|68 Videos

Similar Questions

Explore conceptually related problems

The cross-section of a railway tunnel is a rectangle 6 m broad and 8 m high surmounted by a semi-circle . The tunnel is 35 m long. Find the cost of plastering the internal surface of the tunnel (excluding the floor) at the rate of Rs 2.25 per m^(2)

The cross-section of a tunnel is a square of side 7 m surmounted by a semicircle. Calculate: its floor area. The tunnel is 80 m long.

The cross-section of a tunnel is a square of side 7 m surmounted by a semicircle. The tunnel is 80 m long ,Calculate : its volume

The cross-section of a tunnel is a square of side 7 m surmounted by a semicircle. The tunnel is 80 m long Calculate : the surface area of the tunnel (excluding the floor) .

The cross-section of a tunnel perpendicular to its length is a trapezium ABCD as shown in the following figure, also given that: AM= BN, AB= 7m, CD= 5m. The height of the tunnel is 2.4m. The tunnel is 40m long. Calculate : the cost of painting the internal surface of the tunnel (excluding the floor) at the rate of Rs 5 per m^(2) (sq. metre).

A cylindrical pillar is 50 cm in diameter and 3.5 m in height. Find the cost of painting the curved surface of the pillar at the rate of Rs 12.50 per m^2 .

A cylindrical pillar is 50cm in diameter and 3.5m in height. Find the cost of painting the curved surface of the pillar at the rate of Rs. 12. 50\ p e r\ m^2dot

A room is 8 m long and 5 m broad. Find the cost of covering the floor of the room with 80 cm wide carpet at the rate of Rs 225 per metre.

Find the cost of laying grass in a triangular field of sides 50 m , 65 m and 65 m at the rate of rupee 7 per m^(2) .

Find the cost of plastering the inner surface of a well at Rs. 9. 50\ p e r\ m^2, if it is 21m deep and diameter of its top is 6m.

ICSE-CYLINDER, CONE AND SPHERE -EXERCISE 20 (G)
  1. The cross-section of a railway tunnel is a square surmounted by a semi...

    Text Solution

    |

  2. What is the least number of solid metallic spheres, each of 6 cm diame...

    Text Solution

    |

  3. A largest sphere is to be carved out of a right circular cylinder of r...

    Text Solution

    |

  4. A right circular cylinder having diameter 12 cm and height 15 cm is ...

    Text Solution

    |

  5. A solid is in the form of a cone standing on a hemi-sphere with both t...

    Text Solution

    |

  6. The diameter of a sphere is 6 cm. It is melted and drawn into a wire o...

    Text Solution

    |

  7. What is the ratio of the volume of a cube to that of a sphere which...

    Text Solution

    |

  8. A solid iron pole having cylindrical portion 110cm high and of base ...

    Text Solution

    |

  9. In the following diagram a rectangular platform with a semi-circular e...

    Text Solution

    |

  10. The cross-section of a tunnel is a square of side 7 m surmounted by a ...

    Text Solution

    |

  11. The cross-section of a tunnel is a square of side 7 m surmounted by a ...

    Text Solution

    |

  12. The cross-section of a tunnel is a square of side 7 m surmounted by a ...

    Text Solution

    |

  13. A cylindrical water tank of diameter 2.8 m and height 4.2 m is being f...

    Text Solution

    |

  14. Water flows, at 9 km per hour, through a cylindrical pipe of cross-sec...

    Text Solution

    |

  15. The given figure shows the cross-section of a cone, a cylinder and a h...

    Text Solution

    |

  16. A solid consisting of a right circular cone, standing on a hemisphere,...

    Text Solution

    |

  17. A metal container in the form of a cylinder is surmounted by a hemisph...

    Text Solution

    |

  18. A metal container in the form of a cylinder is surmounted by a hemisph...

    Text Solution

    |

  19. An exhibition tent is in the form of a cylinder surmounted by a cone. ...

    Text Solution

    |

  20. A test tube consists of a hemisphere and a cylinder of the same radius...

    Text Solution

    |

  21. A solid is in the form of a right circular cone mounted on a hemispher...

    Text Solution

    |