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AFCAT Model Paper 6
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© examsnet.com
Question : 51
Total: 100
40
%
of a pole is painted red, while
1
5
th
of the remaining pole is painted white. Half of the remaining pole is painted black. If the remaining pole of
12
m
is painted yellow, find the length of the pole.
30 m
40 m
50 m
60 m
Validate
Solution:
Let the length of the pole be ‘x’ m
Length of pole painted red = 40% of x = 0.4x
Length of pole painted white
=
(
1
5
)
×
(
x
−
0.4
x
)
=
0.12
x
Length of pole painted black
=
(
1
2
)
×
(
x
−
0.4
x
−
0.12
x
)
=
0.24
x
Length of pole painted yellow = x - 0.4x - 0.12x - 0.24x = 0.24x
⇒ 0.24x = 12
⇒
x
=
12
0.24
=
50
m
∴ The length of the pole is 50 m
© examsnet.com
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