Question

two motorists anil and sunil are practicing with two different sports car; ferrari and mclaren on the circular racing track for the car racing tournament to be held next month. both anil and sunil start from the same point on the circular track. anil completes one round of the track in 1 min and sunil takes 2 min to complete a round. while anil maintains speed for all the rounds sunil halves his speed after the completion of each round. how many times anil and sunil will meet between the 6th round and 9th round of sunil (6th and 9th round is excluded)? assume that the speed of sunil remains steady throughout each round and changes only after the completion of that round 382 b 347 c 260 none of these

Answer 1

Time taken by Sunil for first round = 2 min second round = 4min third round = 8 min fourth round = 16 min fifth round = 32 min sixth round = 64 min seventh round = 128 min eighth round = 256 min ⇒ Anil stories one moment for each round He meets 127 times in seventh and 255 times in eighth round Total meet =127+255= 382

Answer 2

$\huge \tt \: 382$