Q:

A) 173 m | B) 200 m |

C) 273 m | D) 300 m |

Answer: C) 273 m

Explanation:

Explanation:

Let AB be the lighthouse and C and D be the positions of the ships.

Q:

A) 21.6 m | B) 23.2 m |

C) 24.72 m | D) None of these |

Answer & Explanation
Answer: A) 21.6 m

Explanation:

Explanation:

Draw BE CD

Then, CE = AB = 1.6 m,

BE = AC =

CD = CE + DE = (1.6 + 20) m = 21.6 m.

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Q:

A) Data inadequate | B) 8 units |

C) 12 units | D) None of these |

Answer & Explanation
Answer: A) Data inadequate

Explanation:

Explanation:

One of AB, AD and CD must have given.

So, the data is inadequate.

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Q:

A) 6 | B) 8 |

C) 9 | D) 10 |

Answer & Explanation
Answer: B) 8

Explanation:

Explanation:

Average speed = total distance / total time

Total distance covered = 6 miles; total time = 45 minutes = 0.75 hours

Average speed = 6/ 0.75 = 8 miles/hour

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Q:

A) 30 | B) 3000 |

C) 18 | D) 1800 |

Answer & Explanation
Answer: D) 1800

Explanation:

Explanation:

If an object travels at 5 feet per second it covers 5x60 feet in one minute, and 5x60x60 feet in one hour.

Answer = 1800

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