सीता और गीता क्रमशः प्रत्येक 2 दिनों और प्रत्येक 3 दिनों के अंतराल के बाद तैराकी के लिए जाती हैं । यदि 1 जनवरी को वे दोनों एक साथ तैराकी के लिए गई थीं, तो वे अगली बार कब एक साथ जाएंगी?
व्याख्या एवं हल
सही उत्तर (D) 13th January है।
व्याख्या:
This is an LCM problem. They will meet after LCM(2,3) = 6 days. Since they started on 1st January, they will meet next on 7th January, then 13th January.
In English (Question & Model Answer)
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?
The correct answer is (D) 13th January.
Explanation:
This is an LCM problem. They will meet after LCM(2,3) = 6 days. Since they started on 1st January, they will meet next on 7th January, then 13th January.