Question

P(56,r+6):P(54,r+2)=30800:1
Value of r?

Answer 1

$\frac{56}{r + 6} = \frac{54}{r + 2} \\ cross \: multiplying \\ 56r + 112 = 54r + 324 \\ 2r = 212 \\ r = 106$

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Answer 2

I think question is mistake there will be r+3 in presence of r+2