Question
A right circular cylinder having total surface area of
2833.6 cm2 is immersed in a vessel completely filled with water. If the height of the cylinder is 30% 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 = 1.30r Total surface area of the cylinder = 2833.6 = 2πr(h + r) ∴ 2833.6 = 2πr(1.3r + r) = 2πr(2.3r) = 4.6πr2 ∴ 2833.6 = (9.2/2) × (22/7) × r2 = 2833.6 x 7 x 2/22 x 9.2 ∴ r2 = 196 ∴ r = 14 and h = 18.2 Amount of water displaced = Volume of the right circular cylinder = πr2h = (22/7) × (14)2 × (18.2) = 11211.2 cm³
What should come in place of the question mark (?) in the given series?
115 97 81 67 55 ?
Four figures have been given, out of which three are alike in some manner and one is different. Select the one that is different.
If 16 July 2001 is Monday, then what will be the day of the week on 23 December 2006?
What should come in place of the question mark (?) in the given series based on the English alphabetical order?
NRT, JNP, FJL, BFH, ?
Asim is four years older than his brother Basu who is thrice as old as Chetan. If Asim is four times as old as Chetan, then how old (in years) is Basu?
Shown below are two different positions of the same dice, whose six faces are marked with numbers from 1 to 6. Select the number which will be on the fa...
Select the combination of letters that when sequentially placed in the blanks of the given series will complete the series.
_ BCD _ _ ABC _ _ E _...
Select the term from among the given options that can replace the question mark (?) in the following series.
2A, 3C, 5F, 7J, 11O, ?
A certain number of people are sitting in a row, facing north. N is sitting third to the left of P. M is sitting third to the left of N. O is sitting th...
In a certain code language,
A $ B means 'A is the daughter of B'.
A ∓ B means 'A is husband of B'.
A Ø B means 'A is the wife of...
Relevant for Exams:
