gaming12122 gaming12122

23-02-2019
Mathematics

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suma a 3 numere este 100000.cat este al doilea numar,daca primul este 9999,iar al treileaeste dublul primului??

Respuesta :

mendelson mendelson

23-02-2019

Hypotheticly a is the first number, b the second and c the last one.

a=9999, c=2a

a+b+c=100 000

if a+1=10 000 (no letter) then c= 2×(a+1-1)=2×(a+1)-2 so

a+1+b+2×(a+1)-2=100 000

b=72 000

the second number is as good as 72 000

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