Question

Sa se afle suma numerelor a+b+c,stiind ca :
a-b=477
a:b=12 rest 15
bx5=cx3

Answer 1

a+b+c=?
a-b=477
a:b=12 rest 15 => a=b*12+15
bx5=cx3

12b+15-b=477 => 11b=477-15 => b= 462/11 => b = 42
a=42*12+15 => a=519

5b=3c =>210=3c => c=210/3 => c=70

a+b+c=519+42+70 => a+b+c=631