Question

If 800 is decreased by 10%, what will it become ​

Answer 1

Answer:

Number become after decreasing 10% = 720

Step-by-step explanation:

Given :

Number = 800

Decreased = 10%

To find :

The number become after decreased by 10% .

Taken :

To find the number become after decreasing use this formula -:

$\boxed{\sf{N=\dfrac{100\%-D\%}{100\%}\times800}}$

Where,

N = Number after decreasing

D% = Decrease percentage

Solution :

$:\implies\sf{N=\dfrac{100\%-10\%}{100\%}\times800}$

$:\implies\sf{N=\dfrac{90\%}{1\cancel{00}\%}\times8\cancel{00}}$

$:\implies\sf{N=90\%\times8}$

$:\implies\sf{N=720}$

The number become after decreasing 10% is 720 .