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CDS Model Paper 1 Mathematics
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© examsnet.com
Question : 26
Total: 100
One pendulum ticks 57 times in 58 seconds and another 608 times in 609 seconds. If they started simultaneously, find the time after which they will tick together.
211
19
s
1217
19
s
1218
19
s
1018
19
s
Validate
Solution:
Time gap between two consecutive ticks
58
57
sec
. and
609
608
sec
.
∴ Required time
=
L.C.M of
58
57
and
609
608
=
L
.
C
.
M
of
58
and
609
H
.
C
.
F
of
57
and
608
=
1218
19
sec
© examsnet.com
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