Question
[39]. दो घंटियाँ क्रमशः हर 12 मिनट और हर 18 मिनट पर बजती हैं। वे कितने मिनट बाद फिर एक साथ बजेंगी? / Two bells ring every 12 minutes and every 18 minutes respectively. After how many minutes will they ring together again?
Option 4 : 36 मिनट
Detailed Solution
सही उत्तर 36 मिनट है।
एक साथ बजने का समय = 12 और 18 का LCM = 36 मिनट। / Together-ringing time = LCM of 12 and 18 = 36 minutes.
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prepsnap.in • Mock TestQuestion:
[39]. दो घंटियाँ क्रमशः हर 12 मिनट और हर 18 मिनट पर बजती हैं। वे कितने मिनट बाद फिर एक साथ बजेंगी? / Two bells ring every 12 minutes and every 18 minutes respectively. After how many minutes will they ring together again?
Correct Answer: 36 मिनट
एक साथ बजने का समय = 12 और 18 का LCM = 36 मिनट। / Together-ringing time = LCM of 12 and 18 = 36 minutes.