MBA Exam

N contestants numbered 1, 2, 3, ..., n are running a race around a circular track.I. If the speed of the nth(n > 1) contestant is n times the speed of the (n-1)th contestant then the nth contestant meets (n+1)th contestant at the starting point n times as frequently as he meets the (n-1)th contestant.II. If the speed of the nth(n > 1) contestant is n times the speed of the 1st contestant then the 2nd contestant and 4th contestant meet each other twice as frequesntly as the 6th and the 7th contestant.Which of the following is correct?

1) Only I
2) Only II
3) Both I and II
4) None of these

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MBA Other Question
The number of zeros between the decimal point and the first non zero digit in (1/6)^216 given that log2= 0.3010 and log3= 0.477 is

1) 167
2) 168
3) 169
4) 170
 Four small pipes three medium pipes and two large pipes were attached to a tank. three small pipes or two medium pipes or a large pipe can fill the tank in 14.5 hours. If all the pipes were opened simulatenously find the time taken to fill the tank in hours343.52.5

1) 1
2) 2
3) 3
4) 4