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\((935421 \times 625) = ?\)

  • A.575648125
  • B.584638125
  • C.584649125
  • D.585628125

Answer: B

\(935421 \times 625\\ = 935421 \times 5^{4}\\ =935421 \times \left ( \dfrac{10}{2} \right )^{4}\\ =\dfrac{935421 \times 10^{4}}{2^{4}}\\ =\dfrac{9354210000}{16}\\ =584638125\)

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