Three bells P, Q, and R are rung periodically in a school. P is rung every 20…
GATE · 2022 · EE · General AptitudeGATE · 2022 · MA · General Aptitude
Three bells P, Q, and R are rung periodically in a school. P is rung every 20 minutes; Q is rung every 30 minutes and R is rung every 50 minutes.
If all the three bells are rung at 12:00 PM, when will the three bells ring together again the next time?
- A.
5:00 PM
- B.
5:30 PM
- C.
6:00 PM
- D.
6:30 PM
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