Question

calcular x
AB/3 = BC/5 = CD/2
AD=60
A----------B-------x------C----------D

Answer 1

AB/3 = BC/5 = CD/2 = k

AB = 3k

BC = 5k

CD = 2k

sabemos que AD=60, ambien sabemos que AD es la suma de los segmentos  AB, BC, CD

3k + 5k +2k = 60

10k= 60;;;  k= 6

BC = 5k = x = 30