Q:

A) I and II | B) I and III |

C) Only III | D) I and either II or III |

Answer:

Explanation:

Explanation:

From I and II,

Length = 3x = 48 m

∴ x = 16

Breath = 2x = 32 m

Hence, Area of floor = 48 × 32

Cost of flooring = 48 × 32 × 850 = ₹ 1305600

From I and III, 2(l +b) = 160

2(3x + 2x) = 160

10x = 160

∴ x = 16

∴ Length = 3 × 16 = 48 m

Breadth = 2x = 32m

Cost of flooring = (48 × 32) × 850 = ₹ 1305600

Similarly, from II and III, we can find

l = 48 m

b = 32 m

and Total cost of flooring = ₹ 1305600

0
35

1
402

Q:

A) 13x3 + 92x2 - 55x + 4 | B) 13x3 - 92x2 - 55x - 4 |

C) 13x3 + 92x2 + 55x - 4 | D) 13x3 - 92x2 + 55x + 4 |

1
362

Q:

A) 253.17 cubic cms | B) 228.84 cubic cms |

C) 143.26 cubic cms | D) 257.68 cubic cms |

0
336

Q:

A) (2,4) | B) (-2,-4) |

C) (2,-4) | D) (-2,4) |

1
400

Q:

A) increased in the ratio 55:63 | B) decreased in the ratio 63:55 |

C) increased in the ratio 45:77 | D) decreased in the ratio 77:45 |

0
432

0
452

1
482