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Seeta and Geeta go for a swim after a gap of every 2 days and every 3 days respectively. If on 1st January both of them went for a swim together, when will they go together next?
- a)7th January
- b)8th January
- c)12th January
- d)13th January
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Seeta and Geeta go for a swim after a gap of every 2 days and every 3 ...
Solution:
To find out the next time they go for a swim together, we need to find the LCM (Least Common Multiple) of 2 and 3.
Step 1: Write the multiples of 2 and 3 till we get a common multiple.
Multiples of 2: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60...
Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60...
Step 2: We can see that the first common multiple of 2 and 3 is 6. So, the LCM of 2 and 3 is 6.
Step 3: We know that Seeta goes for a swim after every 2 days and Geeta goes for a swim after every 3 days. They went for a swim together on 1st January. So, the next time they will go for a swim together will be after 6 days.
Step 4: Therefore, they will go for a swim together next on 7th January.
Hence, the correct answer is option A.
To find out the next time they go for a swim together, we need to find the LCM (Least Common Multiple) of 2 and 3.
Step 1: Write the multiples of 2 and 3 till we get a common multiple.
Multiples of 2: 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46, 48, 50, 52, 54, 56, 58, 60...
Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, 39, 42, 45, 48, 51, 54, 57, 60...
Step 2: We can see that the first common multiple of 2 and 3 is 6. So, the LCM of 2 and 3 is 6.
Step 3: We know that Seeta goes for a swim after every 2 days and Geeta goes for a swim after every 3 days. They went for a swim together on 1st January. So, the next time they will go for a swim together will be after 6 days.
Step 4: Therefore, they will go for a swim together next on 7th January.
Hence, the correct answer is option A.
Community Answer
Seeta and Geeta go for a swim after a gap of every 2 days and every 3 ...
I think answer is 13th of January option D.
Explanation.
They go next time after a "gap" of days, so those days are to be omitted. This can be a bit confusing as number system is used by some students.
This problem require just a simple trick. Write on which days they both would go respectively.
Seeta(2 Day gap) : 1st || 4th || 7th || 10th || 13th
Geeta(3 Day gap) : 1st || 5th || 9th || 13th
Count and eliminate the days, because there is a gap written in the question. Meaning whole 2/3 days are to be skipped.
Explanation.
They go next time after a "gap" of days, so those days are to be omitted. This can be a bit confusing as number system is used by some students.
This problem require just a simple trick. Write on which days they both would go respectively.
Seeta(2 Day gap) : 1st || 4th || 7th || 10th || 13th
Geeta(3 Day gap) : 1st || 5th || 9th || 13th
Count and eliminate the days, because there is a gap written in the question. Meaning whole 2/3 days are to be skipped.
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Seeta and Geeta go for a swim after a gap of every 2 days and every 3 days respectively. If on 1st January both of them went for a swim together, when will they go together next?a)7th Januaryb)8th Januaryc)12th Januaryd)13th JanuaryCorrect answer is option 'A'. Can you explain this answer?
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Seeta and Geeta go for a swim after a gap of every 2 days and every 3 days respectively. If on 1st January both of them went for a swim together, when will they go together next?a)7th Januaryb)8th Januaryc)12th Januaryd)13th JanuaryCorrect answer is option 'A'. Can you explain this answer? for UPSC 2025 is part of UPSC preparation. The Question and answers have been prepared according to the UPSC exam syllabus. Information about Seeta and Geeta go for a swim after a gap of every 2 days and every 3 days respectively. If on 1st January both of them went for a swim together, when will they go together next?a)7th Januaryb)8th Januaryc)12th Januaryd)13th JanuaryCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for UPSC 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Seeta and Geeta go for a swim after a gap of every 2 days and every 3 days respectively. If on 1st January both of them went for a swim together, when will they go together next?a)7th Januaryb)8th Januaryc)12th Januaryd)13th JanuaryCorrect answer is option 'A'. Can you explain this answer?.
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