What approximate value will come in place of question mark (?) in the given questions ? (You are not expected to calculate the exact value.)
Expression : $$10^{?} - 162 \times 1\frac{1}{3} = 28^{2}$$
=> $$(10)^x - (162 \times \frac{4}{3}) = 784$$
=> $$(10)^x - 216 = 784$$
=> $$(10)^x = 784 + 216 = 1000$$
=> $$(10)^x = (10)^3$$
=> $$x = 3$$
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