At what time between 4 and 5 o'clock will the minute-hand of a watch be 13 minutes in advance of the hour-hand?
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Answer:
Step-by-step explanation:
When the two hands coincide with each other the angle between them is 0
o
.
θ=
2
11
m−30h. Here θ=0
o
,h=4
2
11
m=30h
⇒11m=60h⇒m=
11
60h
m=
11
60×4
=
11
240
=21
11
9
min past 4.
The two hands of the clock coincide at 4 hours 21
11
9
min.
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