Question

Places A and B are 30 km apart and they are on a straight road. Hamid travels from A to B on bike. At the same time Joseph starts from B on bike, travels towards A. They meet each other after 20 minutes. If Joseph would have started from B at the same time but in the opposite direction (instead of towards A). Hamid would have caught him after 3 hours. Which of the following equations represent the mathematical form of the given information?
(A) x + y = 90 and x - y = 10
(B) x - y = 4 and 2x + y = 22
(C) x + y = 20 and x-y= 30
(D) x - y = 20 and 2x + y = 30

Which option is correct ​

Answer 1

Answer:

Correct option is

(A) x + y = 90 and x - y = 10

Answer 2

$\bold \red{x + y = 90 \: and \: x - y = 10 }$