Question

Give the answer of my question

Answer 1

Since 6 beats take 15 seconds, we can easily find out how much time it takes for 12 beats.

6 beats = 15 sec

1 beat = 15/6 sec = 5/2 sec

12 beats = 1 beat x 12 = 5/2 x 12 = 30 sec.

You can also easily solve it in another method. Since two times 6 is 12, we multiply 15 by 2 to get the same answer, i.e. 30 sec.

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