Question

hand start
e minute
frem 3. How many minute
will it take to come back
to 3 again​

Answer 1

Answer:

At 3:x clock has 60 divisions and 360 degrees so 1 division =360/60=6 degrees

At 3:x

At this time minutes needle is at (x) *6 degrees=6x degrees

At 3, hours needle is at 15*6=90 degrees

In 60 minutes hours needle moves 5 divisions

so in (x) minutes it will move =5*(x) /60 =x/12 division

=6x/12

=x/2 degree

so total degrees of hours hand=90+(x)/2

should be equal to the degrees of the minutes hand

so 90+(x)/2=(x)6

or 90+x/2=6x

or 5.5x==90 or

x=18/1.1=16.37minutes.

So they will be at same point

at 3:16.37 hours