Question

59. In a puja pandle, the neon lights show "TRUTH BEAUTY BEAUTY TRUTH". The
words are glowing at an interval of 1, 2, 4, and 5 secs., and were getting off at an
interval of 1 sec. Then find after what interval, the whole sentence could be read?​

Answer 1

Answer:

taking 1 sec off duration, the lights glow simultaneously in 2, 3,5,6 seconds.

now take the LCM of those duration the answer comes 30 seconds, after which whole sentence can be read.