Question

Impartiti nr 36 in trei nr inverv prop cu nr 3,5; 6

Answer 1

a+b+c=36   ( cred ca ai inteles ca partile sunt a,b,c)

{a,b,c} invers prop. {3;5;6}

3a=5b=6c

3a=6c ⇒a=2c

5b=6c ⇒b=1,2c

2c+1,2c+c=36

4,2 c=36   c=36/4,2=360/42=60/7

a=2·60/7

b=1,2·60/7 

mai ai de efectuat ultimele 2 calcule