Three bells toll
9 =32, 12 = 22 x 3, 15
LCM = 3 × 5 = 22 x 32 x 5 = 4 x 9 x 5 180 minutes or 3 hours
⇒ They will next toll together after 3 hours.
AI is thinking…
Couldn't generate an explanation.
Generated by AI. May contain inaccuracies — always verify with your textbook.