SPEED-MIRACLE-PROBLEM-ans

its impossible! if u drove the first lap in 40 kmph, its impossible that the
average speed of both the laps is 80kmph.
for eg. consider one lap distance = 80km.
time req. to cover 1 lap = 80km/40kmph = 2 hrs.

if the avg. speed is 80kmph, then the total time would have taken = 160kms/80kmph = 2 hrs.
same is the case with any other distance u consider. so the avg to be 80kmph is impossible

SPEED MIRACLE PROBLEM

In a motor race the person 'A' has completed one lap with a speed of 40kmph. what should be his speed in second lap so that his average speed becomes 80kmph?

speedAnswer1

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Suresh sits around a round table with some other men. He has one rupee more than his right person and this person in turn has 1 rupee more than the person to his right and so on, Suresh decided to give 1 rupee to his right & he in turn 2 rupees to his right and 3 rupees to his right & so on. This process went on till a person has 'no money' to give to his right. At this time he has 4 times the money to his right person. How many men are there along with Suresh and what is the money with poorest fellow???


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