Area of rectangle

How many times will we increase the area of the rectangle if we increase twice the length and at the same time we decrease the width by half?

Correct answer:

n =  1

Step-by-step explanation:

a2=2a b2 = b/2  S1 = a b S2=a2 b2 = 2a b/2 = a b  S1=S2 n=1

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