Question

daca impart suma a 2 numere la diferenta lor obtin catul 5 si restul 4. daca adun suma si diferenta,rezulta 94

Answer 1

(a+b):(a-b)=5+r4
(a+b)+(a-b)=94  a+b+a-b=2a    2a=94    a=94;2     a=47
(47+b):(47-b)=5+r4
47+b=5*(47-b)+4
47+b=235-5b+4
b+5b=239-47
6b=192
b=192:6
b=32
a=47
proba
47+32):(47-32)=79:15=5+r4