Simplify and express in standard form \(\frac{0.00275 \times 0.0064}{0.025 \times 0.08}\)

  • A 8.8 x 10\(^{-1}\)
  • B 8.8 x 10\(^{-2}\)
  • C 8.8 x 10\(^{-3}\)
  • D 8.8 x 10\(^{3}\)
jamb 1990mathematics

The correct answer is C. 8.8 x 10\(^{-3}\)

\(\frac{0.00275 \times 0.0064}{0.025 \times 0.08}\)

Removing the decimals = \(\frac{275 \times 64}{2500 \times 800}\)

= \(\frac{88}{10^4}\)

\(88 x 10^{-4} = 88 x 10^{1} x 10^{-4} = 8.8 x 10^{-3}\)

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