try this simple logical question

@sherya-mathur-cI63wY • Oct 23, 2024

Oct 23, 2024

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Q: A bus run at 100 km/hr top speed. It can carry a maximum of 6 persons. If speed of bus decreases in fixed proportion with increase in number of person, find speed when three person are traveling in bus.
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Saandeep Sreerambatla

@saandeep-sreerambatla-hWHU1M • Apr 19, 2010

If 100 Km/hr is the top speed, then the bus runs at 100 Km/hr even if 3 passengers are traveling!
silverscorpion

@silverscorpion-iJKtdQ • Apr 20, 2010

I think, either ES is right, or some information is missing in the question.

Now, when the driver is alone in the bus, ie., when there's only one person, the bus moves at 100 kmph.
If we assume that for every additional person, the bus slows down by x kmph, then the lowest speed that the bus will go is at 100-5x kmph.
So, if we want to find the speed of the bus when 3 persons are travelling, we need to know x. For that, the lowest speed f the bus is required.

Or, did I miss something here???
sherya mathur

@sherya-mathur-cI63wY • Apr 20, 2010

yes cs is right
very nice
thank you cs
the speed of the bus will remain 100 km/h even when 3 passengers are traveling

try this one also

Near the beach there is a floating ship. Over the board is hauled down a rope ladder with 10 steps. The distance between every two steps is 30cm. The lowest step lays on the water surface. The tide is coming and every hour the water rises with 15cm. When will the water get to the third step of the ladder?
vkvinoth3

@vkvinoth3-FPeo3S • Apr 20, 2010

remember ... there is buoyancy force...
Saandeep Sreerambatla

@saandeep-sreerambatla-hWHU1M • Apr 20, 2010

I Guess it will not reach the third step anytime.