Home
Class 14
MATHS
A 15m deep well with radius 2.8 m is dug...

A 15m deep well with radius 2.8 m is dug and the earth taken out from it is spread evenly to form a platform of breadth 8m and height 1.5m. What will be the length of the platform ? (Take `pi=22/7`)
2.8 मी त्रिज्या वाला 15 मी गहरा एक कुआँ खोदा जाता है तथा इससे निकली मिट्टी को समान रूप से फैलाकर 8 मी चौड़ाई तथा 1.5 मी ऊंचाई वाला एक चबूतरा बनाया जाता है | इस चबूतरे की लंबाई क्या होगी ?

A

28.4 m

B

28.8 m

C

30.2 m

D

30.8 m

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • 2018 TIER-II PAPER(5)

    CHAMPION PUBLICATION|Exercise EXERCISE|100 Videos
  • 2019 TIER-II PAPER (1)

    CHAMPION PUBLICATION|Exercise EXERCISE|99 Videos
CHAMPION PUBLICATION-2018 TIER-II PAPER(6)-EXERCISE
  1. Find the value / मान ज्ञात करें: 24xx2 div 12+ 12 div 6 of 2 div (15 ...

    Text Solution

    |

  2. A person covers 40% of the distance from A to B at 8 km/h, 40% of the ...

    Text Solution

    |

  3. A 15m deep well with radius 2.8 m is dug and the earth taken out from ...

    Text Solution

    |

  4. In triangle PQR, angle Q succ angle R, PS is the bisector of angle P a...

    Text Solution

    |

  5. 25 persons can complete a work in 60 days. They started the work. 10 p...

    Text Solution

    |

  6. The value of sin^2 64^@+cos64^@ sin26^@+2cos43^@ cosec47^@ is : sin^...

    Text Solution

    |

  7. tank is in the form of a cuboid with length 12m. If 18 kilolitre of wa...

    Text Solution

    |

  8. In finding the HCF of two numbers by division method, the last divis...

    Text Solution

    |

  9. A person invested one-fourth of the sum of Rs 25,000 at a certain rat...

    Text Solution

    |

  10. The radius of the base of a right circular cylinder is 3 cm and its cu...

    Text Solution

    |

  11. If (3(x^2+1)-7x)/(3x)=6, x ne 0 then the value of sqrtx+1/sqrtx is: ...

    Text Solution

    |

  12. Basir’s working hours per day were increased by 15% and his wages per ...

    Text Solution

    |

  13. A student was asked to find the value of 9 4/9 div 11 1/3 of 1/6+(1 1/...

    Text Solution

    |

  14. If a 10-digit number 5432y1749x is divisible by 72, then what is the ...

    Text Solution

    |

  15. What is the remainder when (127^97 +97^97) is divided by 32 ? जब (1...

    Text Solution

    |

  16. Find the value मान ज्ञात करें : ((sin theta-cos theta)(1+tan theta+c...

    Text Solution

    |

  17. A, B and C spend 80%, 85% and 75% of their incomes, respectively. If t...

    Text Solution

    |

  18. If 25% of half of x is equal to 2.5 times the value of 30% of one-four...

    Text Solution

    |

  19. Find the value मान ज्ञात करें : (sin theta+cos theta-1)/(sin theta-c...

    Text Solution

    |

  20. In an examination, A obtained 10% more marks than B, B obtained 20% mo...

    Text Solution

    |