Find the what approximate value which should be come in place of the following questions .(You are not expected to calculate exact value).

Solution
Expression : $(10008.99)^{2}/(10009.001)\times\sqrt{3589}\times0.4987=?$
$\approx \frac{(10009)^2}{10009} \times \sqrt{3600} \times 0.5$
= $1009 \times 60 \times 0.5$
= $1009 \times 30 = 30270$
$\approx 30,000$
=> Ans - (A)

Solution
Expression : $(10008.99)^{2}/(10009.001)\times\sqrt{3589}\times0.4987=?$
$\approx \frac{(10009)^2}{10009} \times \sqrt{3600} \times 0.5$
= $1009 \times 60 \times 0.5$
= $1009 \times 30 = 30270$
$\approx 30,000$
=> Ans - (A)