Question 11

If $$\sqrt{1+\frac{x}{144}}=\frac{13}{12}$$ then x equals to

Solution

Expression : $$\sqrt{1+\frac{x}{144}}=\frac{13}{12}$$

Squaring both sides,

=> $$(1+\frac{x}{144})=(\frac{13}{12})^2$$

=> $$\frac{144+x}{144}=\frac{169}{144}$$

=> $$144+x=169$$

=> $$x=169-144=25$$

=> Ans - (D)

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