Question

a field is 80 m long and 50 m broad in one corner of the field a pit which is 10 M long 7.5 m broad and 8 M deep has been dug out the earth taken out of it is evenly spread over the remaining part of the field find the rising in the level of the field

Answer 1

80
50
+10
7.5
8
=28.5
this is answer

Answer 2

Area of the field = 80 x 50 = 4000 m2
Vol of the earth taken out = 10 x 7.5 x 8 = 600 m2
Area of remaining field = 4000 - 10 x 7.5 = 3925 m2
The earth dug out is spread over a field of area = 3925 m2
Let ht be h
3925 x h = 10 x 7.5 x 8
h = 10 x 7.5 x 8 / 3925
= 0.15 m
= 15 cm ( ans)
Hope it helps u