SOLUTION: Mary and Murray travel respectively at x and y km/h heading directly towards each other across a distance of 240km. If both start at 9 a.m. they will meet at noon. If Murray starts

Question 1126195: Mary and Murray travel respectively at x and y km/h heading directly towards each other across a distance of 240km. If both start at 9 a.m. they will meet at noon. If Murray starts at 9 a.m. they and Mary starts at 10 a.m. they will meet soon at 12:30 p.m. Find (x,y).
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
dd their speeds since they travel towards each other
(1)
Next Murray gets a 1 hr head start. In 1 hr, he travels:
km
Start counting time when Mary leaves
(2)
-----------------------------------------
(2)
(2)
and
(1)
(1)
subtract (1) from (2)

and
(1)
(1)
--------------------------
They both travel at 40 km/hr
----------------------------------
check:
(2)
(2)
(2)
(2)
OK

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