the barrel of a fountain pen cylindrical in shape is 7 cm long and 2.5 mm in radius .A full barrier of ink in the Pen is used for writing 440 words on an average . How many words would use up a bottle containing 200cm cube ?????
Answers
Answered by
9
volume of pen=πr^2h=38.5 cm^3
so 38.5 =440 words
200= ?
no words= (200*440)/38.5
so 38.5 =440 words
200= ?
no words= (200*440)/38.5
Answered by
0
Answer:
64233 words would use up a bottle containing 200 cm cube.
Step-by-step explanation:
Given : The barrel of a fountain pen cylindrical in shape is 7 cm long and 2.5 mm in radius . A full barrier of ink in the Pen is used for writing 440 words on an average.
To find : How many words would use up a bottle containing 200 cm cube?
Solution :
The barrel of a fountain pen cylindrical in shape is 7 cm long and 2.5 mm in radius.
r=2.5mm=0.25 cm
Volume of the pen is
V=πr²h
V=(3.14)h
V=3.14*0.25*0.25*7 cm³
V=1.37 cm³
For 1.37 cm³ = 440 words
1 cm³ = 440/1.37 words
200 cm³ = (440/1.37)*200 words
200 cm³ = 64233.5 words
Therefore, 64233 words would use up a bottle containing 200 cm cube.
Similar questions