Question

aflati numerele a, b, c ∈ Q stiind ca cunt invers proportionale cu 2, 5, 6 si ca a - b = 15 (Dau coroana)

Answer 1

2a=5b=6c=k ■ a=k/2, b=k/5, c=k/6

a-b=15

k/2-k/5=15 ■ 5k-2k= 150 k=50

a=k/2=25, b=k/5=10, c=k/6=50/6=25/3