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The circumference of one wheel is 20mm longer than that of another wheel. The product of two circumference is 144300mm. Calculate the length of the two circumferences.

The circumference of one wheel is 20mm longer than that of another wheel. The product of two circumference is 144300mm. Calculate the length of the two circumferences.

Grade:12th pass

1 Answers

Arun
25768 Points
2 years ago
given that c1=c2+20 
and 
c1*c2=144300 mm^2 
therefore 
(c2+20)*c2=144300 
 

hence c2^2+20*c2-144300=0 
this is a quadratic equation in c2 and can be solved using the standard 
procedure
as c2=(-20+760)/2=

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