Mya would have both lessons on the same day again on the 12th day.
The unitary method is a method for solving a problem by the first value of a single unit and then finding the value by multiplying the single value.
An event can occur in m different ways and if following it, a second event can occur in n different ways then the two events in succession can occur in m × n different ways.
We need to find in how many days would they have the classes on the same day again.
To determine when they would have the both lessons on the same day, the common multiple of 6 and 4 has to be determined.
A multiple of number is the product of an integer and that number.
A common multiple is the multiple that is common to two or more numbers.
Multiple of 6 = 6, 12, 28, 24, 30, 36,
Multiple of 4 = 4, 8, 12, 16, 20, 24, 28
Common multiple = 12
Therefore, Mya would have both lessons on the same day again on the 12th day.
To learn more about multiples, please check: brainly.com/question/26030133
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