Question

determina numarul natural x, stiind ca: a:x=3 a:b=6 a-b=50

Answer 1

a-b=50 => a= 50+b (1)

a:b=6 => a=6b (2)

(1), (2) => 6b=50 +b => b=10 => a=60 => x = 60:3 = 20