Latest Infosys Aptitude Question SOLUTION: The length of a cold storage is double its breadth. Its height is 3 metres. The area of its four walls(including doors) is 108 m2. Find its volume.

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The length of a cold storage is double its breadth. Its height is 3 metres. The area of its four walls(including doors) is 108 m2. Find its volume.

Asked In Infosys Garima (11 years ago)

Solved chaitanya Read Solution (6)

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Read Solution (6) :

chaitanya  (11 years ago)

let the breadth of the storage be b metres
therefore the length of the storage l=2b metres
height of the storage =3 metres

now the area of the four wall = 2(l+b)h

we already know that area= 108 m2 (given)
=> 2(l+b)h =108
=> 2(2b+b)3=108
=> 2 x 3b x 3=108
=> 18b=108
=> b=6m

now l=2b
=2x6
=12m
=>l=12m

now volume of the storage is l x b x h= 12m x 6m x 3m
= 216m^3

Is this solution Helpfull? Yes (18) | No (2)  

jomon v j  (11 years ago)

answer 216m³

let xbe breadth ,then 2x is the length

then 2x*3*2+x*3*2=108

12x+6x=108

x=108/18=6

length 12,breadth 6 ,height 3

volume=12*6*3=216

Is this solution Helpfull? Yes (9) | No (1)  

varma  (11 years ago)

=> 2(l+b)h =108
=> 2(2b+b)3=108
=> 2 x 3b x 3=108
=> 18b=108
=> b=6m

now l=2b
=2x6
=12m
=>l=12m

now volume of the storage is l x b x h= 12m x 6m x 3m
= 216m^3

Is this solution Helpfull? Yes (6) | No (1)  

ashutosh singh  (11 years ago)

Area of four walls =2(l+b)h =108
l=2b(given), h=3 then
2(3b)*3=108 i.e 18b=108 then b=6, l=12 ,h=3 volume=6*12*3=216

Is this solution Helpfull? Yes (1) | No (2)  

aanchal sharma  (11 years ago)

let b be breadth of cold storage.
then length is equal to 2b.
area = l*b
area = 2b*b=108
b=10.38
length=20.76
volume=10.38*20.76*3=62.20

Is this solution Helpfull? Yes (1) | No (3)  

Abhradeep Ganguli  (10 years ago)

area of 4-walls is 108 m^2. let breadth is of x mtrs, so length is 2x metrs. now, 3x+3x+6x+6x=108. so, x=6. length is 12. volume=12*6*3=216 m^3

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