Question
A right circular cylinder having total surface area of
2710.4 cm2 is immersed in a vessel completely filled with water. If the height of the cylinder is 20% more than its radius, what is the amount of water displaced (in cm3)?Solution
Let the radius and height of the cylinder be r and h cm respectively. ∴ h = 1.20r Total surface area of the cylinder = 2710.4 = 2Ï€r(h + r) ∴ 2710.4 = 2Ï€r(1.2r + r) = 2Ï€r(2.2r) = 4.4Ï€r2 ∴ 2710.4 = (8.8/2) × (22/7) × r2 = 2710.4 x 7 x 2/22 x 8.8 ∴ r2 = 196 ∴ r = 14 and h = 16.8 Amount of water displaced = Volume of the right circular cylinder = Ï€r2h = (22/7) × (14)2 × (16.8) = 10348.8 cm³Â
Find the next term / numbers in the given series?
54, 46, 40, 36, ?
- Study the given pattern carefully and select the number that can replace the question mark [?] in it.
First row: 11, 7, 1274
Second row: 9, ... Study the given pattern carefully and select the number that can replace the question mark (?) in it.
First row: 14, 12, 108
Second row:...
In the following expression find the missing term:
A series is given with two terms missing. Choose the correct alternatives from the given ones that will come in the place of blanks respectively and com...
UDGO : FWTL : : MXRC : ?
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
What will come in the place of question mark?
Find the missing number.
E/M ∶ 20/156: : G/O: ?
