Question

At a bookstore, "BOOK FOR SALE" is flashed using neon lights. The words are individually flashed at intervals of 2(1/2), 4(1/4), 5(1/8) seconds respectively, and each word is put off after a second. The least time after which the full name of the bookstore can be read again is:
A) 49.5 seconds
B) 73.5 seconds
C) 1744.5 seconds
D) 855 seconds

Answer 1

1744.5 secondsis the answer

Answer 2

Answer:

73.5.......................