Question

a+b+c=153 a>b cu 10 c:(a+b)=3 rest 17 cum aflam??

Answer 1

a + b + c = 153

a = b + 10

c : ( a + b ) = 3 rest 17

c = 3 × ( a + b ) + 17

c = 3 × a + 3 × b + 17

a + b + c = 153

b + 10 + b + 3 × ( b + 10 ) + 3 × b + 17 = 153

8 × b = 153 - 17 - 30 - 10

8 × b = 96

b = 96 : 8

b = 12

a = 12 + 10 = 22

c = 3 × 12 + 3 × 22 + 17 = 36 + 66 + 17 = 119

Verific: 12 + 22 + 119 = 153 → suma celor trei numere