Question

who will give answer of my question I will mark him /her as brainliest

Answer 1

Let the speed of Joseph = xkm/h

Let the speed of Hamid = ykm/h

When approaching one another, combined speed = (x+y)km/h

Time taken to meet = 30/(x+y) = 1/3  (20 minutes = 1/3 hours)

x+y = 90 ------ (i)

When moving in opposite direction, combined speed = (x-y)m/h

Time taken for Hamid to catch up = 30/(x-y) = 3

x-y = 10 ---- (ii)

Solving (i) and (ii) simultaneously

x+y = 90
x-y = 10
_______
2x = 80
x = 40

y = 50

∴ Speed of Joseph = 40km/h

now plz mark as BRAINLIEST

Speed of Hamid = 50km/h