Truck or bird

Level 2

A truck had to cross a 5 km long bridge which could bear a maximum of 5000 kg of weight. The truck weighed exactly same as the weight that the bridge could bear when it was entering. When the truck reached halfway, a bird weighing 40 grams came and sat on the bridge,what will happen?

bridge collapses hole is made in the bridge nothing will happen truck breaks

Prajwal Kavad by Prajwal Kavad , 24, India

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2 solutions

Prajwal Kavad
Mar 27, 2014

In moving 2.5 km, the truck must have consumed more than 40 grams of fuel, so the bridge will not collapse. hence nothing will happen

2 Helpful 0 Interesting 0 Brilliant 0 Confused

Can you provide some numbers to substantiate that "in moving 2.5 km, the truck must have consumed more than 40 grams of fuel"?

Calvin Lin Staff - 7 years, 2 months ago

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its general knowledge that an average truck runs 4-8 kms for 1 litre of petrol or diesel so in moving 2.5 kms it would have consumed actually more than some 300 ml and density of petrol is more than water hence it
would have consumed more that 300 gms which is more than 40 gms

Prajwal Kavad - 7 years, 2 months ago

extra tar is put so the bridgeis stabel

Bharat M - 1 month, 4 weeks ago
Mohamed Moanis
Jun 29, 2014

40 grams are not comparable to 5000 Kg, so nothing will happen

0 Helpful 0 Interesting 0 Brilliant 0 Confused

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