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Concept of Average Speed: LCM of 50, 100, 200 and 400 = 400 Now,Let side = LCM of 50, 100, 200 and 400 = 400 Now, Average Speed =total distance/ total time= (400 ×4)/(400/50+400/100+400/200+400/400) = (400 ×4)/15= 106.67 kmph
The combined speed of 'Amit' and 'Bhanu' is ________ km/hr. 'Amit' traveled for 5 hours, and 'Bhanu' traveled for ______ hours in such a way that the di...
In a 1000-metre race, 'Ravi' beats 'Shyam' by '200' metres and 'Raj' by '300' metres. If 'Shyam' and 'Raj' participate in a 400-metre race, and 'Raj' ge...
A man takes a total of 5 hrs 30 min by walking to a certain place and coming back by cycle. He would have gained 2 hrs 30 min by cycling both the ways. ...
A man travels a certain distance at 12 km/h and returns to the starting point at 9 km/h. The total time taken by him for the entire journey 2 (1/3) hour...
‘A’ and ‘B’ started moving towards each other at same time with a speed of 24 km/hr and 12 km/hr, respectively. If the distance covered by ‘Aâ...
The speed of two cars A and B are in the ratio of 14:17 respectively. Car A travels 12 km less than the car B in the same time duration. What was the di...
A person covers the first 288 km at a speed of 64 km/h, then travels the next 220 km at a speed of 40 km/h, and finally completes the remaining 288 km ...
A car running with a speed of 65 km/hr takes 12 hours to go from 'A' to 'B'. If on the way back from 'B' to 'A', the car takes 20% less time than it tak...
Anshul lives on 19th floor and Keshav lives on 46th floor. Anshul goes up at a rate of 24 floors per minute and Keshav comes down at a rate of 30 floo...
‘A’ and ‘B’ started moving towards each other at same time with a speed of 25 km/hr and 15 km/hr, respectively. If the distance covered by ‘Aâ...
