The cost of erecting wall all around a circular ground at the rate of ₹ $60 / m$ comes to be ₹ $26.400 .$ Find the cost of levelling the ground at the rate of ₹ $50 / m ^{2}$. (in ₹)

  • A

    $672000$

  • B

    $752000$

  • C

    $770000$

  • D

    $519000$

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