Question

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

Answer 1

Step-by-step explanation:

area of total field = 80 × 50 = 4000 sq m

area of pit = 10 × 7.5 = 75 sq m

area of remaining field = 4000 - 75 = 3925 sq m

volume of earth taken out = 10 × 7.5 × 8 = 600 cu m

volume of Cuboid formed = volume of earth taken out

3925 × h = 600

h = 600 ÷ 3925

h = 0.152 mts

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