For the following questions answer them individually
The volume ofa cone is $$108 \pi$$ cubic ems and its height is 9 cms. The base radius (in cms) ofthe cone is
A rectangular plot R of perimeter 46 metres has area 120 square metres. The area of the square whoseside is equal to the diagonal ofR, is
A wheel makes 50 revolutions in covering a distance of440 metres. The radius (in metres) ofthe wheel is
The ratio ofthe curved surfacearea to the total surface area of a right circular cylinder is 1 : 2. If its total surface area is 616 sq. cms., then the volume ofthe cylinder(in cubic ems) is
If $$m = 7^1. 5^2. 3^4. 2^8$$, then the greatest integer value of k such that $$21^k$$ divides m is
If $$a^x = b^y = c^z \neq 0$$ and $$b^2 = ac$$, then the progression in which x, y, z are is
Three numbers are in the ratio | : 2 : 3 and the sum of the cubes of them is 36. The smallest number among them is
The earnings of A, B, C are in the ratio 7: 9 : 12 and their expenditures arein the ratio 8:9: 15. IfA saves 25% of his earnings, then the ratio oftheir savings is