Places A and B are 30km apart and they are on straight road. Hamid travels from A to B on bike. At the same time Joseph starts from B on bike, travel towards A. They meet each other after 20 minutes.If Joseph would have started from B at the same time but in opposite directions (instead of towards A) Hamid would have caught him after 3 hours. Find the speed of Hamid and Joseph.

Answers 1

Answer:

its so easy

Step-by-step explanation:

9 A

Let the speed of Hamid be x km/h and

that of Joseph be y km/h.

When both travel in same direction so, the distance covered by them together will be 30 km.

Distance

Time

We know Speed

They meet each other after 20 min =

20 1 60 3 hours

+ 30 =

⇒ x + y 90.....(I)

When Joseph started from point B but moved in opposite direction. Distance travelled by Hamid - Distance travelled by Joseph = 30

⇒ 3x-3y

= 30

⇒xy = 10.....(II)

Adding (1) and (II) we get

2x = 100

⇒x=50

View in app

Putting the value of x in (II) we get

50 - y = 10

⇒y = 40

Thus, speed of Hamid is 50 km/h and that of Joseph is 40 km/h.