Tech Mahindra Company Numerical Ability Area and Volume

Capacity of a cylindrical vessel is 25,872 litres. If the height of the cylinder is 200% more than the radius of its base, what is the area of the base in square cms?
option
a) 336
b) 1232
c) 616
d) cannot be determined

Read Solution (Total 2)

let r be the radius
so height,h=r+(200% of r)=r+2r=3r
volume of cylinder=pi*r^2*h
or pi*r^2*3r=25872
or 22/7 *r^3=8624
or r^3=392*7=8*7*7*7
0r r=14
so area of base=22/7 *14*14=616
ans (c)
10 years agoHelpfull: Yes(49) No(2)

ur correct rakesh
9 years agoHelpfull: Yes(0) No(2)

Tech Mahindra Other Question

Q. A man is 20 mins late to the office if he walks at 20 kmph, and 15 mins earlier if he walks at 30 kmph. How much time will he be early/late if he walks at 25 kmph? The perimeter of a square and a rectangle is the same. If the rectangle is 12 cms. by 10 cms., then by what percentage is the area of the square more than that of the rectangle?
option
a) 1
b) 3
c) 5/6
d) 1/2