A person goes to office at a speed of 3 kmph and returns at the speed of 2 kmph. If he
takes 5 hrs in all, then what is the distance the person has to travel to reach office.
Solution:
Let the distance be p km.
Time taken to reach office p/3 hrs.
Time taken to return from office p/2 hrs.
therefore, p/3 + p/2 = 5 hrs.
solving we get p = 5 km.
Shortcut Method:
To calculate the required distance in this case we use the following formula.
Distance = (product of speeds x Total time to cover distance) / (Addition of two speeds).
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takes 5 hrs in all, then what is the distance the person has to travel to reach office.
Solution:
Let the distance be p km.
Time taken to reach office p/3 hrs.
Time taken to return from office p/2 hrs.
therefore, p/3 + p/2 = 5 hrs.
solving we get p = 5 km.
Shortcut Method:
To calculate the required distance in this case we use the following formula.
Distance = (product of speeds x Total time to cover distance) / (Addition of two speeds).
Get Updates on Facebook and Twitter also.
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