Q:

A) 3:2 | B) 2:3 |

C) 5:7 | D) 7:5 |

Answer: B) 2:3

Explanation:

Explanation:

Ans. Let radius of the base and height of the cone be ‘r’ & ‘h’ respectively.

Then volume of cone = πr2h/3 For cylinder, radius is reduced by 4 times = r/4 And, height is increased by 8 folds = 8h Volume of cylinder = πR2H = π(r/4)2 (8h) = (16/8)πr2h = πr2h/2 Ratio of volume of cone to volume of cylinder = (πr2h/3) : (πr2h/2) Or, Ratio = 2 : 3.

0
29

Q:

A) Potassium | B) Gold |

C) Iron | D) Silver |

0
39

0
30

Q:

A) -6529\frac{-65}{29} | B) 15\frac{1}{5} |

C) 529\frac{5}{29} | D) 1312\frac{13}{12} |

2
44

0
69

0
80

Q:

A) Momentum | B) Density |

C) Pressure | D) Relative density |

0
556

Q:

A) Chhattisgarh | B) Bihar |

C) Odisha | D) Jharkhand |

0
449