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Thursday, 05 March 2026
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Simplify \(\frac{(1.25 \times 10^{-4}) \times (2.0 \times 10^{-1})}{(6.25 \times 10^5)}\)

Simplify \(\frac{(1.25 \times 10^{-4}) \times (2.0 \times 10^{-1})}{(6.25 \times 10^5)}\)
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  • A 4.0 x 10-3
  • B 5.0 x 10-2
  • C 2.0 x 10-1
  • D 5.0 x 10-3
Correct Answer: Option A
Explanation:
\(\frac{(1.25 \times 10^{-4}) \times (2.0 \times 10^{-1})}{(6.25 \times 10^5)}\) = \(\frac{1.25 \times 2}{6.25}\) x 104 - 1 - 5
\(\frac{2.50}{6.25}\) x 10-2 = \(\frac{250}{625}\) x 10-2
0.4 x 10-2 = 4.0 x 10-3

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