places A and B are 30 km apart and are on a straight road. Hamid Travels on bye, 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 Hamid would have caught him after 3 hours .
find the speed of hermit and Joseph
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the speed of Joseph & Hamid is 40 & 50 resp.
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