Instructions

What will come in place of question mark (?) in the given questions ?

Question 48

5/9 $$\times$$ (225.40-45.4)=$$?^{2}$$

Solution
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Expression : 5/9 $$\times$$ (225.40-45.4)=$$?^{2}$$

=> $$\frac{5}{9} \times 180 = (x)^2$$

=> $$5 \times 20 = (x)^2$$

=> $$(x)^2 = 100$$

=> $$x = \sqrt{100} = 10$$

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