Multiple choice

Find the next term of the series. $72,63,54,45, ?$

  1. $36$
  2. $81$
  3. $27$
  4. $90$
  5. $18$
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A Correct answer
Explanation

The series decreases by 9 each step: 72, 63, 54, 45, 36.

AI explanation

We calculate the difference between consecutive terms of the given series. The series decreases by 9 each time because 72 minus 63 is 9, 63 minus 54 is 9, and 54 minus 45 is 9. Subtracting 9 from the final term of 45 gives 36 as the next number in the sequence.

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