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A Person X Started At 3 Hours Earlier At 40km/h From A Place P, Then Another Person Y Followed Him At 60km/h. Started His Journey At 3 O'clock, Afternoon. What Is The Diference In Time When X Was30 Km Ahead Of Y And When Y Was 30 Km Ahead Of X? |
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Answer» Time ( when X was 30 km ahead of Y) = (120-30)/20 =4.5h Time ( when Y was 30 km ahead of X) = (120+30)/20 = 7.5 h THUS, REQUIRED DIFFERENCE in time = 3H. Time ( when X was 30 km ahead of Y) = (120-30)/20 =4.5h Time ( when Y was 30 km ahead of X) = (120+30)/20 = 7.5 h Thus, required difference in time = 3h. |
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