Two wheels revolve around a common axis; the bigger one makes 15 and the smaller one makes 20 revolutions in a minute, respectively. Starting with a certain point on the circumference downwards. After how many revolutions will they come together in the same position?
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Step-by-step explanation:
Time for one revolution =
15
60
=4,
20
60
=3,
48
60
=
4
5
LCM of 4,3,
4
5
.= LCM of Numerators/HCF of Denominators =
1
60
=60
hope this helps you
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