Question

If the unit of length is doubled the numerical value of Area will become ________ times its original value.

• A. $\frac{1}{2}$
  
• B. $\frac{1}{4}$
• C. 2
• D. 4

Answer 1

The correct option is B $\frac{1}{4}$

As unit of length is doubled unit of Area will become four times. So the numerical value of Area will became one fourth Because numerical value $\propto \frac{1}{unit}$