the barrel fountain pen cylindrical in shape is 7cm long and 5mm in diameter. a full barrel of ink in the pen is used up in writing 330 words 

on an average.

how many words would use up a bottle of ink containing one fifth of a litre?

Given, length of cylindrical shaped barrel = 7 cm

Diameter of barrel

∴ Radius of barrel

Volume of cylindrical barrel = πr2h

=1.375 cm3 

Now, volume of ink in the bottle of (1 litre)

= 200 cm3 

Now, one full barrel can write 330 words

⇒ 1.375 cm3 of ink write 330 words

= 48000 words

  • 150
What are you looking for?