HCF AND LCM practice question for Railways, SSC. Review the correct answer and explanation, then continue with related practice below.
If they flash together now, when will they flash together next?
प्रश्न 16 Three lights flash every 12 seconds, 18 seconds and 24 seconds.
तीन लाइटें क्रमशः 12 सेकंड, 18 सेकंड तथा 24 सेकंड में चमकती हैं।
यदि वे अभी एक साथ चमकती हैं, तो अगली बार कितने समय बाद एक साथ चमकेंगी?
Answer and explanation are free to read — no sign-in required.उत्तर और व्याख्या पढ़ने के लिए साइन-इन आवश्यक नहीं है।
Correct Answerसही उत्तर
C. 72 secondsC. 72 सेकंड
Explanationव्याख्या
LCM(12,18,24)=72.
LCM(12,18,24)=72।
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