Question

☆《If (R+r)=4 and (R-r)=1 then find R and r》☆


❤-------T-----A------N------Y-----A--------❤
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Answer 1

Explanation:

R+r=4 (eqn 1)

R-r=1 (eqn 2)

Then, R =4-r (eqn 3)

putting eqn 3 in 2

4-r-r =1

4-2r=1

r=1.5

Then purging the valve of r in eqn 1

R=2.5

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Answer 2

Answer:

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Explanation:

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