Eric was trying to sleep one night but there was too much noise around him. His clock ticked every 5 seconds and a tap dripped
every 7 seconds. He noticed on his clock that these two sounds
happened together at midnight.
(a) After how many seconds would the two sounds happen
together again?
(b) How many times would the two sounds happen together
again between midnight and one o'clock?​I will give brainliest