the trafic at different road crossing change after 48 , 72 , 108 second respectively if they change simuntaneously at7am then at what time will they simontaneously meet again
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The time will again change = lcm of 48,72,108
Lcm=2×2×3×3×2×2×3
=432 seconds
=432÷60
=7mins 12 seconds
Lcm=2×2×3×3×2×2×3
=432 seconds
=432÷60
=7mins 12 seconds
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