Question
A right circular cylinder having total surface area of
44352 cm2 is immersed in a vessel completely filled with water. If the height of the cylinder is 25% 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 = 1.25r Total surface area of the cylinder = 44352 = 2πr(h + r) ∴ 44352 = 2πr(1.25r + r) = 2πr(2.25r) = 4.5πr2 ∴ 44352 = (9/2) × (22/7) × r2 = 44352 x 7 x 2/22 x 9 ∴ r2 = 3136 ∴ r = 56 and h = 70 Amount of water displaced = Volume of the right circular cylinder = πr2h = (22/7) × (56)2 × (70) = 689920 cm³
The World Meteorological Day is held annually on____
The contamination and growth of fungi on grapes, the phenomenon of "Pourriture noble" and "Pourriture grisse" as caused by
Dental formula of Lemur is:
Which one the following Country has largest area under drip irrigation in the world?
The isolation distance for the foundation seed of rice is:
Which sedimentary rock is formed from compressed plant remains?
The process of development of seed from anther is called:
FSSAI has been established under the Food Safety and Standards Act
The water soluble P (as % Pâ‚‚ Oâ‚… ) in ammonium phosphate (DAP) is
Cycocel is a:
Relevant for Exams:
