CBSE Class 10 Answered
please solve it!
Asked by | 21 Sep, 2009, 01:46: PM
Expert Answer
D = diameter of well,
d = depth of well,
D2, D1 = outer and inner diameters of the embankment.
H = height of embankment.
D1 = D
Amount of volume of earth dug out = πD2d/4
= (22/7)(7)2(22.5) = 3465 m3
The same amount goes to form the embankment,
= π(D22 - D12) H/4 = π(D22 - D2) H/4 = 3465 m3
D22 = {(3465)(4)(7)/[(22)(1.5)]} + 49
= 2989 m2
D2 = 54.67 m
Width of embankment = (D2 - D)/2 = 23.84 m
Regards,
Team,
TopperLearning.
Answered by | 25 Sep, 2009, 04:09: PM
CBSE 10 - Maths
Asked by hanugraha | 30 May, 2010, 07:53: PM
ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by hanugraha | 30 May, 2010, 07:13: PM
ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by shobhitdc | 29 May, 2010, 04:59: PM
ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by ROJAAPPA | 29 May, 2010, 12:58: PM
ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by shobhitdc | 29 May, 2010, 10:52: AM
ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by devanshmudgal | 28 May, 2010, 07:31: PM
ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by shobhitdc | 28 May, 2010, 01:12: PM
ANSWERED BY EXPERT
CBSE 10 - Maths
Asked by shobhitdc | 28 May, 2010, 01:08: PM
ANSWERED BY EXPERT