Question

A field is in the form of rectangle of length 20 m and width 14 m. A 10 m deep well of diameter 7 m is dug in one corner of the field and the earth taken out of the well is spread evenly over the remaining part of the field. Find the rise in the lever of the field.

Answer 1

$\bf\large\underline\pink{Solution:-}$

Volume of well =volume of earth level rise in the field

pi.r^2.h=length x breadth x height

22/7 x 7/2 x 7/2 x 10=20 x 14 x height

11 x 7 x 5=20 x14 x height

height =11/8 m

hence 11/8m level rise in the field

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Answer 2

$\huge\star\mathfrak\blue{{Answer:-}}$

An agriculture field is in the form of a rectangle of length 20m width 14m. A 10m deep well of diameter 7m is dug in a corner of the field and the earth taken out of the well is spread evenly over the remaining part of the field. Find the rise in its level.