Question

By what percent will a number decrease, if the new number becomes the half of the original number.​

Answer 1

Answer:

50%

Step-by-step explanation:

Let's assume that, the number is x.

The new number is $\frac{1}{2}$ of x = $\frac{x}{2}$

The number decreased by $x - \frac{x}{2} = \frac{x}{2}$

Percentage decreased $=\frac{amount decreased}{Original number} . 100$% $=\frac{\frac{x}{2}} {x} . 100$% $=50$%