A tank 40 m long, 30 m broad, and 20 m deep is dug in a field 1000 m long and 30 m wide. By how much will the level of the field rise if the earth dug out the tank is evenly spread over the field?
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volume of earth dug out=volume of tank
=40*30*20
=24000 cubic metre
area of field not dug out= (1000-40)*30
=960*30
=28800 metre square
increase in leavel of the field = 24000/28800
= 0.8333m
=40*30*20
=24000 cubic metre
area of field not dug out= (1000-40)*30
=960*30
=28800 metre square
increase in leavel of the field = 24000/28800
= 0.8333m
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