Instructions
What will come in place of the question mark (?) in the following questions?
Solution
Expression : $$(\sqrt{125.44} \times 85 \div 8 )-11=(?)^{2} \div 3$$
=> $$(\frac{11.2 \times 85}{8}) - 11 = \frac{x^2}{3}$$
=> $$119 - 11 = \frac{x^2}{3}$$
=> $$x^2 = 108 \times 3 = 324$$
=> $$x = \sqrt{324} = 18$$
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