Math, asked by nivedithasraj910, 1 month ago

find r if 5pr = 2 × 6p r-1​

Answers

Answered by shariffnasirulla
0

Answer:

5÷(5 - r)=2×6÷(7 - r)

(7 - r)(6 - r )= 4×3

r = 3

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