Aptitude - Volume and Surface Area - Discussion

Discussion Forum : Volume and Surface Area - General Questions (Q.No. 3)
3.
A hall is 15 m long and 12 m broad. If the sum of the areas of the floor and the ceiling is equal to the sum of the areas of four walls, the volume of the hall is:
720
900
1200
1800
Answer: Option
Explanation:

2(15 + 12) x h = 2(15 x 12)

h = 180 m = 20 m.
27 3

Volume = 15 x 12 x 20 m3 = 1200 m3.
3

Video Explanation: https://youtu.be/V8EQ1YIaH74

Discussion:
75 comments Page 6 of 8.

Erika said:   8 years ago
Why isn't an area of four walls equal to 4*l*b?

Sreelakshmi said:   1 decade ago
Please explain this concept with proper steps.

Summi said:   1 decade ago
Hey can any one explain how you got 180/27cm ?

Ann said:   10 years ago
Did not understand any of this at all, sorry.

Nameera khan said:   1 decade ago
But I did not get the starting explanation.

Harsh said:   9 years ago
I cannot understand this. Someone help me.

Kishore said:   5 years ago
@Shahid.

You gave a useful stuff, thanks.

Ramya said:   8 years ago
Anyone help me to understand this easily?

Bir Bahadur Singh said:   8 years ago
I cannot understand this, please explain.

TAMIZHARASI.G said:   8 years ago
Thank you all for the given explanation.


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