Question

The four clocks sound the alarm at intervals of 8 seconds, 12 seconds and 18 seconds respectively. At the beginning of all four clocks, the alarm starts ringing at the same time. (A)12m and 60 time (B) 4m and 20 time (C) 6m and 10 time (D) 2m and 30 time which answer is correct??​

Answer 1

The four clocks sound the alarm at intervals of 8 seconds, 12 seconds and 18 seconds respectively. At the beginning of all four clocks, the alarm starts ringing at the same time. (A)12m and 60 time (B) 4m and 20 time (C) 6m and 10 time (D) 2m and 30 time which answer is correct??