Question

what is the angle between hour needle and minute needle in a clock when it is 7:20 ?explain

Answer 1

You can find this a few ways, try and figure out what angle is between 1 and 2 or 2 and 3 ...
Then figure out how many numbers are bewteen the numbers the needles are at for 7:20,

Or you can do degrees in a circle / degrees on a clock , then multiply that by the difference in the needles for 7:20.