Ashish and Rahul started walking from same point E. Ashish walked at the speed of 15 kmph to the east, and Rahul walked 25 kmph to south, at what time they meet 10 miles apart? Select
A) 15 min B) 16 min C) 17 min D) 18 min E) 19 min
Consider 1 mile = 1.6 km   so 10 miles = 16 km   both are walking in at an angle 90 from same point so pythagorous theorem can be apply hence   (15x)^2 + (25x)^2 = 16^2   by solving and x hours are converted into min we got   approximate 18 min   ANSWER:18 min
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Ashish and Rahul started walking from same point E. Ashish walked at the speed of 15 kmph to the east, and Rahul walked 25 kmph to south, at what time they meet 10 miles apart?