Multiple choice

The 13th term of the series 93, 90, 87 ...... is

  1. 57

  2. -54

  3. 50

  4. 54
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A Correct answer
Explanation

This is an arithmetic progression with first term a = 93 and common difference d = -3. The 13th term is a + (n-1)d = 93 + (12 * -3) = 93 - 36 = 57.

AI explanation

The given series is an arithmetic progression with the first term as 93 and a common difference of -3. Using the formula for the nth term of an arithmetic progression, a + (n - 1)d, we substitute the values to get 93 + (13 - 1)(-3). This simplifies to 93 minus 36, which gives 57. The result is 57.

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