1.

The school bell in School A rings every 30 minutes while the school bell in School B rings every 40 minutes. How long will it take for the bells in both schools to ring together?

Answer»

we know that, the BELL will rings again at the same time will be LCM of their individual time. → LCM = 2 * 2 * 2 * 3 * 5 = 120 minutes. therefore, we can conclude that, both bells will RING again together after 120 minutes or 2 hours.Step-by-step explanation:HOPE it's HELP you



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