A cylindrical tank of 28 cm base radius is partly filled with water. How many spherical iron balls of 1cm radius are added in it in order to increase the water level by 5cm?
Base radius of a cylindrical tank = 28 cm Change in the rise of water in a cylindrical tank = Volume of a bullet Radius of a iron = 1 cm No. of bullets = (Change in the rise of water in a cylindrical tank )/(Volume of a bullet ) = (π r2h)/((4 )/(3 ) π r3) = (π × 28 × 28 × 5 )/(π (4 )/(3 ) × 13) = (28 × 28 × 5 × 3 )/(4 ) = 2,940 To increase the water level by 5cm we need 2,940 bullets.
Don't try to blow smoke , I know the facts very well.
She goes to her mother's house off and on .
I'm sure you understand that we can't have a mere inspector still wet behind the ears running a case of this importance.
Select the most appropriate meaning of the highlighted idiom.
It was a Catch 22 situation for the manager.
Dry Run
Fill in the blank given below using the correct idiom.
The athlete's dedication to training paid off when he won the championship, and his vi...
Select the most appropriate meaning of the given idiom.
Give one the slip
Select the most appropriate meaning of the bold idiom in the given sentence.
The lecture by the French professor seemed Latin and Greek to th...
Select the most appropriate meaning of the underlined idiom in the given sentence.
This problem is a hard nut to crack,it will take longer than t...
Make one's mark
