Question

Suma a patru numere este 43 daca din fiecare se scade acelasi numar se obtin numerele 7 2 9 13 care sunt numerele

Answer 1

a+b+c+d=43
a /.........../...+7../
b /........../..+2../
c /........./..+9....../
c /......../.....+13....../  }43
4 parti+7+2+9+13=43
4 parti+31=43
4 parti=43-31=12
1 parte=12:4=3
a=3+7=10
b=3+2=5
c=3+9=12
c=3+13=16
a+b+c+d=10+5+12+16=43

Answer 2

10+5+12+16=42
10-3=7
5-3=2
12-3=9
16-3=13