CAT Exam

karan and arjun run a 100-meters race ,where karan beats arjun 10 meters . To do a favour to arjun starts 10 meters behind the starting line in a second 100 meters race.they both run at their earlier speeds .which of the following is true in connection with the second race,,,,(a) both reach simultaneously (b) arjun beats karan by 1 m (c)arjun beats karan by 11 m (d)karan beats arjun by 1 m,

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CAT Other Question

The equation 2x^2 + 2(p + 1)x + p = 0, where p is real, always has roots that are one side is 20 and other side is 10 given area is 80 find the other side?