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UPSC CDS I 2019 Math Paper

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Question : 5

Total: 100

Three cars A, B and C started from a point at 5 p.m., 6 p.m. and 7 p.m. respectively and travelled at uniform speeds of 60 km /hr, 80 km /hr and x km /hr respectively in the same direction. If all the three met at another point at the same instant during their journey, then w hat is the value of x ?

120
110
105
100

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