Question 94

The length of a floor is 125% of its width. Floor area of 180 m 2 , the length and width of the floor is the sum of? (In meters)

Solution

Let width of floor = $$x$$ m

=> Length = $$\frac{125}{100}\times x=1.25x$$ m

Area = $$x\times1.25x=180$$

=> $$x^2=\frac{180}{1.25}=144$$

=> $$x=\sqrt{144}=12$$

$$\therefore$$ Sum of length and width = $$x+1.25x=2.25x$$

= $$2.25\times12=27$$

=> Ans - (B)

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