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Q 2259634514.     Alan and Donald run a race between 2 points X and Y, which is 10 km apart. Alan starts at 12 PM from X at a speed of 10 km/hr, reaches Y and then returns to X at the same speed. Donald starts at 12:45 PM from X at a speed of 20km/hr, reaches Y and then comes back to X at the same speed. At what time do they first meet each other?
IBPS-PO 2017 Mock Mains
(Provided By a Student and Checked/Corrected by EXXAMM.com Team)