$\sqrt[3]{64 \times 125}$ equals

$\sqrt[3]{64 \times 125}$ equals
  1. $20$
  2. $40$
  3. $25$
  4. $50$

Solution

$\sqrt[3]{64} \times \sqrt[3]{125} = 4 \times 5 = 20$.

Asked in: IMO

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