Question

exercitiul care incepe cu "un calator " stau de o ora nu mi dau seama​

Answer 1

Răspuns:

Explicație pas cu pas:

D = lungimea drumului

Prima zi D/4

Rest D - D/4 = 4D/4 - D/4 = 3D/4

A doua zi 2/3 *3D/4 = D/2

Rest 3D/4 - D/2 = 3D/4 - 2D/4 = D/4

A treia zi 1/5*D/4 + 5 km = D/20 + 5 km

Rest D/4 - (D/20 + 5) = 5D/20 - D/20 - 5 km = 4D/20 - 5 km = D/5 - 5 km

D/5 - 5 km = 13 km

D/5 = 5 km + 13 km = 18 km

D = 5 x 18 km = 90 km