Question 51

What is the value of $$\left[\left(\frac{1}{2}\div\frac{1}{4}-4\times\frac{1}{2}\times\frac{1}{3}\right)of\left(\frac{2}{3}\div\frac{4}{3}+\frac{1}{2}\right)\right]$$ ?

Solution

Expression : $$\left[\left(\frac{1}{2}\div\frac{1}{4}-4\times\frac{1}{2}\times\frac{1}{3}\right)of\left(\frac{2}{3}\div\frac{4}{3}+\frac{1}{2}\right)\right]$$

= $$\left[\left(\frac{1}{2}\times4-4\times\frac{1}{2}\times\frac{1}{3}\right)\times\left(\frac{2}{3}\times\frac{3}{4}+\frac{1}{2}\right)\right]$$

= $$[(2-\frac{2}{3})\times(\frac{1}{2}+\frac{1}{2})]$$

= $$(\frac{6-2}{3})\times1$$

= $$\frac{4}{3}$$

=> Ans - (D)


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