An agricultural field is in the form of a rectangle of length 20m and width 14m. A pit 6m long 3m wide and 2.5m deep is dug in a corner of the field and earth taken out of the pit is spread uniformly over. The remaining area of the field. The level of the field has raised by?
Options:
A . 15.16cm
B . 16.17cm
C . 17.18cm
D . 18.19m
Answer: Option C
Volume of earth dug out =(6 x3 x 5/2)m3 =45m3 Area of the remaining field =[(20 x14) “(6 x 3)]m3 =45 m3 Let the level of the field raised be h cm , then 262 x h/100 =45 => h = =17.1755 cm = 17.18cm
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