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CDS Model Paper 5 Mathematics
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Question : 25
Total: 100
Three planets revolve round the Sun once in 200,250 and 300 days, respectively in their own orbits. When do they all come relatively to the same position as at certain point of time in their orbits?
After 3000 days
After 1500 days
After 2000 days
After 1200 days
Validate
Solution:
Given that, three planets revolves the Sun once in
200
,
250
,
300
days,
∴ Required time
=
LCM
of
(
200
,
250
,
300
)
=
3000
days
Now, after 3000 days they all come relatively to the same position as at a certain point of time in their orbits.
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