The barrel of a fountain pen cylindrical in shape is 7 cm long and 5mm in diameter. A full barrel of ink in the pen will be used upon writing 330 words on an average. How many words can be possible to write by using a bottle of ink containing one fifth of a litre?
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Answered by
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Radius in cm= 5/20cm
Volume of the barrel of the fountain pen=πr^2h =22/7*(5/20)^2*7 =22*25/400 =11*25/200 ∵1cm^3=1ml =1.375 cm^3 =1.375ml
Words that can be written in 1 ml of ink=310/1.375 1/5ml=200ml
words that can be written in 1/5th ink of a litre=310/1.375*200 =(310*200*1000)/1375 =62,000,000/1375 =45,090∴45,090 words can be written in 1/5 litres of ink
Read more on Brainly.in - https://brainly.in/question/1576016#readmore
Volume of the barrel of the fountain pen=πr^2h =22/7*(5/20)^2*7 =22*25/400 =11*25/200 ∵1cm^3=1ml =1.375 cm^3 =1.375ml
Words that can be written in 1 ml of ink=310/1.375 1/5ml=200ml
words that can be written in 1/5th ink of a litre=310/1.375*200 =(310*200*1000)/1375 =62,000,000/1375 =45,090∴45,090 words can be written in 1/5 litres of ink
Read more on Brainly.in - https://brainly.in/question/1576016#readmore
Answered by
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hey
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volume of barrel = πr^2h
•after finding volume of barrel we hav finded how much ink has been used for writing 330 words
so now we will find how much words havebeen written with 200 cm ^3 ink
• 1 l =1000 ml
•1 ml = 1cm^3
hence we will get the final ans
for the full solution refer to the attachment
hope helped
_________________
________________
volume of barrel = πr^2h
•after finding volume of barrel we hav finded how much ink has been used for writing 330 words
so now we will find how much words havebeen written with 200 cm ^3 ink
• 1 l =1000 ml
•1 ml = 1cm^3
hence we will get the final ans
for the full solution refer to the attachment
hope helped
_________________
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