E. coli DNA in vivo corresponds to an average density of 1 negative superhelical turn/200 bp it means it has 

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#Question id: 7551

#General Aptitude

A car is 50 of its own leaps behind a rat. the car takes 5 leaps per minute to the rat’s 4.It the car and the rat cover 8 m and 5 m per leap respectively, what distance will the Cat have to run before it catches the rat?

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#Question id: 7552

#General Aptitude

A man in a train notices that he can count 41 telephone posts in one minute. If the Posts are known to be 50 maters apart, then at what speed is the train traveling?

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#Question id: 7553

#General Aptitude

A man travelled a distance of 61 km is 9 hours. He travelled partly on foot at 4 km/hr and partly on bicycle at 9 km/hr. What is the distance travelled on foot?

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#Question id: 7554

#General Aptitude

A jogger inside a railway tunnel at a constant speed hears a train approaching the tunnel from behind at a speed of 30 km/hr, when he is one third of the away inside the tunnel. Whether he keeps running forward or turns back, he will reach the end of the tunnel at the same time the train reaches that end. The speed of the running man is

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#Question id: 7555

#General Aptitude

A man can row at 8 km per hour in still water. If it takes him thrice as long to row upstream, as to row downstream, then find the stream velocity?

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#Question id: 7556

#General Aptitude

By travelling at 40 kmph, a person reaches his destination on time. He covered two-third the total distance in one-third of the total time. What speed should he maintain for the remaining distance to reach his destination on time?