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
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