એક ચોક્કસ સંખ્યાના વર્ગના ત્રણ-પંચમાંશ $(3/5)$ ભાગ $126.15$ છે. તો તે સંખ્યા કઈ છે?

  • A
    $14.5$
  • B
    $75.69$
  • C
    $145$
  • D
    $210.25$

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$\sqrt{0.09} = ?$

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$8787 \div 343 \times \sqrt{50} = ?$

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