Aptitude - Volume and Surface Area - Discussion
Discussion Forum : Volume and Surface Area - General Questions (Q.No. 12)
12.
A cistern of capacity 8000 litres measures externally 3.3 m by 2.6 m by 1.1 m and its walls are 5 cm thick. The thickness of the bottom is:
Answer: Option
Explanation:
Let the thickness of the bottom be x cm.
Then, [(330 - 10) x (260 - 10) x (110 - x)] = 8000 x 1000
320 x 250 x (110 - x) = 8000 x 1000
| (110 - x) = |
8000 x 1000 | = 100 |
| 320 x 250 |
x = 10 cm = 1 dm.
Discussion:
49 comments Page 2 of 5.
Manoj Kumar said:
9 years ago
@Pramod & @Narinder.
Well and correctly said.
Well and correctly said.
Twinkle Nagar said:
9 years ago
Our answer is 10 cm.
Then what is 1dm? Please, anybody tell me.
Then what is 1dm? Please, anybody tell me.
Anil kr said:
8 years ago
@Twinkle Nagar.
1dm means 1 decimeter.
1dm means 1 decimeter.
Ramya said:
8 years ago
10^-2 is equal to cm same as 10^-1 is equal to decimeter.
Arshad said:
8 years ago
@Rani.
To convert it into cc.
To convert it into cc.
Shahir said:
8 years ago
On the Left-hand side, we have.
320*250*(110-x) which are all in cm so its cm cube.
while on Right-hand side, we have
8000 * 1000 m cube?
Why is that?
320*250*(110-x) which are all in cm so its cm cube.
while on Right-hand side, we have
8000 * 1000 m cube?
Why is that?
Maruf BD said:
8 years ago
Please, Clear me that 1 dm= How many cm?
Shivani Agarwal said:
7 years ago
@Maruf Bd.
1 dm =10 cm.
1 dm =10 cm.
Ashmita said:
7 years ago
Why we subtracted 10 here?
Jennier said:
7 years ago
How? I am not getting the solution.
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