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 4 of 5.
Ashish said:
1 decade ago
How we can say 1.1m as bottom ? it is v=l*b*h.
Khan said:
3 years ago
10cm = (10/100)m = 0.1m = 1decimeter or 1 dm.
(1)
Narinder said:
9 years ago
@Tejaswini: 1 dm is Decimetre, not diameter.
Ujwala said:
1 decade ago
Why to subtract thickness of both sides?
Mani said:
1 decade ago
I can't understand please tell me brief.
Maruf BD said:
8 years ago
Please, Clear me that 1 dm= How many cm?
Anil kr said:
8 years ago
@Twinkle Nagar.
1dm means 1 decimeter.
1dm means 1 decimeter.
Sarwesh Alshi said:
1 decade ago
Why not 2x? They wrote here only as x.
Akshau said:
6 years ago
dm means decameter.
10cm=1 decameter.
10cm=1 decameter.
Tejaswini said:
1 decade ago
dm in the sense diameter 10cm = 1dm.
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