Evaluate \(\frac{81.81+99.44}{20.09+36.16}\) correct to 3 significant figures.

  • A 6.24
  • B 3.22
  • C 2.78
  • D 2.13
jamb 2009mathematics

The correct answer is B. 3.22

To evaluate the expression \(\frac{81.81+99.44}{20.09+36.16}\) and round the result to 3 significant figures, follow these steps:

1. Calculate the numerator: \(81.81 + 99.44 = 181.25\).

2. Calculate the denominator: \(20.09 + 36.16 = 56.25\).

3. Divide the numerator by the denominator: \(\frac{181.25}{56.25} = 3.2222222...\).

4. Round the result to 3 significant figures: 3.22.

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