Question

Care este cel mai mic numar care impartit la 7 da rest 5 iar impartit la 11 da rest 9

Answer 1

a : 7 = x rest 5 =>a=7x+5 |+2 =>
a : 11 = y rest 9 => a= 11y+9 |+2 =>

=> a + 2 = 7×(x+1)
=> a + 2 = 11×(y+1)

a + 2 = 7 × 11 = 77
a = 77 - 2
a = 75 (numarul cautat)

75 : 7 = 10 rest 5
75 : 11 = 6 rest 9