What approximate value will come in place of the question mark (?) in the following questions ? (You are not expected to calculate the exact value).
( 1800 $$\div \sqrt{?}$$ $$\times$$ 29.99 ) $$\div$$ 15.02 = 144
Expression : ( 1800 $$\div \sqrt{?}$$ $$\times$$ 29.99 ) $$\div$$ 15.02 = 144
= $$\frac{1800}{\sqrt{?}} \times \frac{30}{15} = 144$$
= $$\sqrt{?} = \frac{1800 \times 2}{144} = 25$$
$$\therefore$$ ? = 25 * 25 = 625
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