Question

Aflati doua nr., stiind ca :
a) au suma 984, catul 3 si restul 4
b) au diferenta 725, catul 9 si restul 5

Answer 1

a) a+b=984
a:b=3 r 4=>a=3b+4
3b+4+b=984
4b+4=984
4b=980
b=245
a=739

b) a-b=725
a:b=9 r 5 =>a=9b +5
9b+5 -b=725
8b+5=725
8b=720
b=90
a=815

Answer 2

a) 984:3+4=331
984-331=653
b)725×9+5=6530
6530-725=5625