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Instructions
What will come in place of the question mark (?) in the following questions?
Solution
Expression : $$\sqrt{(12)^{2} \times 24 \div 5-(6)^{3}+149.8}=(?)^{2}$$
=> $$\sqrt{\frac{144 \times 24}{5} - 216 + 149.8} = (x)^2$$
=> $$\sqrt{691.2 + 149.8 - 216} = (x)^2$$
=> $$\sqrt{625} = (x)^2$$
=> $$(x)^2 = 25$$
=> $$x = \sqrt{25} = 5$$
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