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IBPS Clerk Mains 2015 Paper
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© examsnet.com
Question : 65
Total: 200
The area of rectangular field of length 90 meters and breadth 80 meters is equal to the area of a square plot. What will be the length of the diagonal of the square plot?
120 m
100 m
99 m
105 m
None of these
Validate
Solution:
(a) Given that the length of the rectangular field l = 90 mand breadth b = 80 m.
Then its area lb = 90 × 80 sq.m
We know that the area of square
=
(
1
2
)
×
(
diagonal
)
2
from the given question, we have area of square plot =area of rectangular field
That is
,
90
x
80
=
1
2
×
(
diagonal
)
2
(
diagonal
2
)
=
2
×
7200
=
14400
=
(
120
)
2
diagonal = 120 m.
© examsnet.com
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