a pit 5 m long and 3.5 m wide is dug to a certain depth.If the volume of earth taken out of it is 14m^3,what is the depth of the pit
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GIVEN:
Length of a pit (l) = 5 m
Breadth of a pit (b) = 3.5 m
Volume of Earth taken out = 14 m³
Let the depth of a pit = h m
Volume of cuboidal pit = Volume of Earth taken out
l × b × h = 14 m³
5 × 3.5 × h = 14 m³
h = 14 /(5×3.5)
h = 140/( 5×35)
h = 20/ (5 × 5) = 20/25= ⅘ = 0.8 m
h = 0.8 m
h = 0.8 × 100 = 80 cm [ 1m = 100 cm]
Hence, the depth of the pit is = 0.8 m or 80 cm.
HOPE THIS WILL HELP YOU....
Length of a pit (l) = 5 m
Breadth of a pit (b) = 3.5 m
Volume of Earth taken out = 14 m³
Let the depth of a pit = h m
Volume of cuboidal pit = Volume of Earth taken out
l × b × h = 14 m³
5 × 3.5 × h = 14 m³
h = 14 /(5×3.5)
h = 140/( 5×35)
h = 20/ (5 × 5) = 20/25= ⅘ = 0.8 m
h = 0.8 m
h = 0.8 × 100 = 80 cm [ 1m = 100 cm]
Hence, the depth of the pit is = 0.8 m or 80 cm.
HOPE THIS WILL HELP YOU....
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