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Start learning 50% faster. Sign in nowAny boy may be stand on any place so there is no difference in clockwise and anticlockwise direction here. Requirement permutations = 1/2 × (n - 1)! => 1/2 × (9 - 1)! => 1/2 × 8! => 20160
A boy goes to school with a speed of 50 km/h and comes back with a speed of 30 km/h. find his average speed?
The average speed of a bus is 2/3 of the average speed of a car which covers 1800 km in 20 hrs. What is the average speed of the bus?
Train P starts from Lucknow to Dehradun at 11:55 am with an average speed of 55 m/s. Train Q starts from Dehradunto Lucknowat 1:35 pm with an average sp...
Sheila walks at the speed of her usual speed (20/21) and determines a clear distance in eight minutes more than the time it takes in normal speed. Calcu...
Amrita traveled a certain distance, covering 50% of it at a speed of 15 km/h, then 40% of the remaining distance at 7.5 km/h, and the rest at 9 km/h. If...
Gaurav works at SBI Whitefield Office. On the first day to work, he drove at 40 km/h but was late to the bank by 18 minutes. The next day he drove at 50...
Find the distance travelled (in km) by the truck to reach point B from point A, if a car cover 45% the same distance in 2 hours 42 minutes and a truck c...
The distance between two stations is 1520 km. Train A takes 9 hours longer than Train B to cover this distance. If Train B travels 72 km/h faster than T...
A man is travelling at a speed of 20 km/h such that he will take 60 minutes to reach his destination. But after completing half the journey, the man too...
Pranav went to the bank at the speed of 60 km/h while returning for his home he covered the half of the distance at the speed of 10 km/h, but suddenly h...
