Question

A field is in the form of a 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 level of the field. (Use π=22/7)

Answer 1

We have

Radius of the well = 7

                                  _  m

                                   2          

Depth of the well =10 m

Volume of the earth dug =π( 7

                                               _

                                                2