Respuesta :

Answer:

18

Step-by-step explanation:

take 10% of 20 and subtract the result from 20

After decreasing the number by 20 % . the result will be 18.

Given,   number is 20.

10 % of 20 [tex]=\frac{20*10}{100}=\frac{200}{100}=2[/tex]

Number will become,[tex]=20-2=18[/tex]

Hence, After decreasing the number by 20 % . the result will be 18.

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