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CDS Model Paper 4 Mathematics
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© examsnet.com
Question : 15
Total: 100
X and Y start from the same point and run around a circular stadium, whose circumference is
4200
m
, at the rate of
500
m
and
700
m
per minute, respectively in the opposite directions. They will meet each other in:
3.5
min
6.0
min
8.4
min
21
min
Validate
Solution:
Relative speed of
x
and
y
=
(
500
+
700
)
=
1200
m
∕
min
Time taken
=
4200
1200
=
3.5
min
© examsnet.com
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