18) The earth taken out from a well is evenly spread over a rectangular field of length 65m and breadth 40 m. If the volume of the earth dug is 1820 cu.m, find the height of the earth spread.
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11th
Applied Mathematics
Numerical Applications
Mensuration
The earth taken out from a ...
Maths
The earth taken out from a pit is evenly spread over a rectangular field of length 80 m and width 60 m. If the volume of the earth dug is 3696 m
3
. then the field is raised by
Medium
Answer
Correct option is
B
77 cm
Volume of earth dug out =3696m
3
Length of rectangular field=80m
width of rectangular field=60m
∴ Height raised
=
Areaofrectangularpit
Volumeofearthdugout
=
80m×60m
3696m
3
=
4800
3696
m
=0.77m=77cm
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