Sawaal
34
Q:

A room is half as long again as it is broad. The cost of carpeting the at Rs. 5 per sq.m is Rs. 270 and the cost of papering the four walls at Rs. 10 per sq.m is Rs. 1720. If a door and 2 windows occupy 8 sq. m, find the dimensions of the room.

A) b=6; l=18; H=6 B) b=5; l=6; H=18
C) l=6; b=18; H=15 D) l=5; b=18; H=18

Answer:   A) b=6; l=18; H=6



Explanation:

Let breadth = x metres, length = 3x metres, height = H metres. 

Area of the floor=(Total cost of carpeting)/(Rate) = (270/5) sq.m = 54 sq.m 

x×3x2=54⇒x2=54×2⇒x=6  

So, breadth = 6 m and length =362 = 9 m.

Now, papered area = (1720/10) =  172 sq.m 

Area of 1 door and 2 windows = 8 sq.m 

Total area of 4 walls = (172 + 8) sq.m = 180 sq.m 

2×9+6H=180⇒H=6

Subject: Area - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams
Job Role: Bank PO

how get length is 3x. (i cant understand this "a room is half as long again as it is broad). pls explain this

Commented by  nidheeshuk at Sep 10, 2014 09:26 PM

Report abuse |  Rate this : 62

how to get length is equal to 3x/2

Commented by  nidheeshuk at Sep 12, 2014 01:03 PM

Report abuse |  Rate this : 37
Related Questions
Q:

The lengths of the diagonals of a rhombus are 16 cm and 12 cm. Its area is:

 

A) 48 cm2 B) 28 cm2
C) 69 cm2 D) 96 cm2
 
Answer & Explanation Answer: D) 96 cm2

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Area - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

6 11859
Q:

In a triangle, if the measures of two sides are 5 cm and 8 cm, then the third side can be:

 

 

 

A) 3 cm B) 14 cm
C) 2 cm D) 4 cm
 
Answer & Explanation Answer: D) 4 cm

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Area - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

2 6156
Q:

In the given figure, if AB=8Cm, AC=10Cm, ∠ABD=90° and AD=17Cm, then the measure of CD is

 

 

A) 8 cm B) 9 cm
C) 11 cm D) 10 cm
 
Answer & Explanation Answer: B) 9 cm

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Area - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

2 1599
Q:

In the given figure, ∠APO=35° if then which of the following options is correct?

 

 

A) ∠APB = 60° B)  ∠APB = 80°
C)  ∠APB = 35° D) ∠APB = 55°
 
Answer & Explanation Answer: C)  ∠APB = 35°

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Area - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

1 12880
Q:

The area of a semicircle is 77 sq.cm. Calculate its perimeter (in cm)

 

A) 72 B) 49
C) 98 D) 36
 
Answer & Explanation Answer: D) 36

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Area - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

0 7218
Q:

The length of the diagonal and the breadth of a rectangle is 25 cm and 7 cm respectively. Calculate its area (in sq.cm)

 

A) 336 B) 168
C) 240 D) 480
 
Answer & Explanation Answer: B) 168

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Area - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

0 779
Q:

The area of an equilateral triangle is 18√3 sq.units. Find the value of side (in units) of the triangle.

 

A) √2 B) 2√2
C) 3√2 D) 6√2
 
Answer & Explanation Answer: D) 6√2

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Area - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

1 773
Q:

An arc length of 16π units subtends an angle of 240 degrees. Find the radius 9in units) of the circle.

 

 

A) 6 B) 12
C) 24 D) 36
 
Answer & Explanation Answer: B) 12

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Area - Quantitative Aptitude - Arithmetic Ability
Exam Prep: Bank Exams

2 725