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Instructions
What will come in place of the question mark (?) in the given questions ?
Solution
Expression : $$10 (1024.8 + 24.6 - 4.2) = ?^{2} + 48$$
=> $$10 \times 1045.2 = (x)^2 + 48$$
=> $$(x)^2 = 10452 - 48 = 10404$$
=> $$x = \sqrt{10404} = 102$$
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