Răspuns :
a+b=496 . 3/8*496+b=496. 186+b=496 b=310.
Varianta 2.
a=3/8*(a+b)=3/8*496=186
b=5/8*(a+b)=5/8*496=5*62=310
a+b=496
a=496*(3/8)=1488/8=186
b=496-186=310
V2:
a+(3/8)496=496
a=496-(3/8)496
a=496(1-3/8)
a=496*5/8
a=2480/8=310
b=496-310 =186