Area | Aptitude Questions and Answers | Aptitude Free Online-Tests | LucentBlackBoard

Home > Arithmetic Aptitude > Area > Questions and Answers

01.

The cost of carpeting a room 18 m long with a carpet 75 cm wide at Rs 4.50 per metre is Rs 810. The breadth of the room is

A.	7 m	B.	7.5 m
C.	8 m	D.	8.5 m

Answer and Explanation

Answer: 7.5 m

Explanation:
Length of the carpet = (total cost)/(Rate /m) = (8100)/(46) = 180 m
Area of the room = Area of the carpet = (180 * 75/100) = 135 sq m
Hence, Breadth of the room = (area)/(length) = 135/18 = 7.5 m

View Answer |

Report |

Discuss in Forum

02.

A rectangular carpet has an area of 120 sq metres and a perimeter of 46 metres. The length of its diagonal is

A.	15 m	B.	18 m
C.	17 m	D.	20 m

Answer and Explanation

Answer: 17 m

Explanation:
2 (l + b) = 46 or (l + b) = 23
Also, lb = 120
Hence, Diagonal = √(l2 + b2)= √(l2 + b2 â€“ 2lb) = √(232 â€“ 240) = √289 = 17 m

View Answer |

Report |

Discuss in Forum

03.

The ratio of the areas of a square and rhombus whose base is same is:

A.	1:2	B.	2:1
C.	1:1	D.	3:1

Answer and Explanation

Answer: 1:1

Explanation:
The square and the rhombus are equal in area if they have a common base.

View Answer |

Report |

Discuss in Forum

04.

The length of a rectangular plot is 20 metres more than its breadth. If the cost of fencing the plot @ 26.50 per metre is Rs. 5300, what is the length of the plot in metres?

A.	40	B.	50
C.	120	D.	None of these

Answer and Explanation

Answer: None of these

Explanation:

View Answer |

Report |

Discuss in Forum

05.

A tank is 25 m long, 12 m wide and 6 m deep. The cost of plastering its walls and bottom at 75 paise per sq. m, is:

A.	Rs. 456	B.	Rs. 458
C.	Rs. 558	D.	Rs. 568

Answer and Explanation

Answer: Rs. 558

Explanation:

View Answer |

Report |

Discuss in Forum

LucentBlackBoard.com has the web's largest collection of over 15,000 aptitude questions and answers with detailed explanation which include subjects like Arithmetic Aptitude, Logical Reasoning, Verbal Ability, General Knowledge, Programming Skills and more!

Our online education portal provides a unique and standard learning experience for students. We enable the students to prepare for most of the entrance and competitive exams like MBA (MAT, GMAT), Engineering (IIT-JEE, AIEEE, GATE), Employment (IAS, Bank PO, Railway, UGCNET), Civil Services and many more. We bring you the best in education by providing technical excellence and creating innovative solutions. We provide facility for online test preparation that offers 24/7 access to relevant subject matter and relative tests. These test preparations help the students to groom themselves and get prepared before actually facing the examination.