A well of diameter 3m is dug 14m. The earth taken out is evenly spread is shape of circular ring of width 4m. Find height of embankment.
(40 pointer question!!!!)
Answers
Answered by
3
1.125m is the embarkment
Lel:
In starting it will be 99 instead of 66 as you have done 14/2=2 Instead of 7.
Answered by
6
let the height of embankment h metre
then volume of embankment is equal to volume of earth taken out
= 22/7 ×1.5 ×1.5 ×14 = 22/7 (5^2 -1^2) h
= 2.25×14 = 24h
= 24h = 31.50
h = 1.3125 m
then volume of embankment is equal to volume of earth taken out
= 22/7 ×1.5 ×1.5 ×14 = 22/7 (5^2 -1^2) h
= 2.25×14 = 24h
= 24h = 31.50
h = 1.3125 m
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