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A ladder
20
f
t
long leans against a vertical wall. The top end slides downwards at the rate of
2
f
t
per second. The rate at which the lower end moves on a horizontal floor when it is
12
f
t
from the wall is
0
votes
asked
Dec 13, 2021
in
Sets, relations and functions
by
kritika
(
90.1k
points)
A ladder
20
f
t
long leans against a vertical wall. The top end slides downwards at the rate of
2
f
t
per second. The rate at which the lower end moves on a horizontal floor when it is
12
f
t
from the wall is
(A)
8
3
(B)
6
5
(C)
3
2
(D)
17
4
Ans(A)
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89
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answered
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answered
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answered
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by
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answered
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answered
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answered
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by
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