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If the AM of a, a +3, a + 6, a + 9 and a + 12 is 10 then a is ​

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Answer:

Explanation:

AI-generated answer

To find the value of "a" when the arithmetic mean (AM) of a, a + 3, a + 6, a + 9, and a + 12 is 10, we can set up the equation:

(a + a + 3 + a + 6 + a + 9 + a + 12) / 5 = 10

Combine like terms and simplify the equation:

(5a + 30) / 5 = 10

Divide both sides of the equation by 5:

5a + 30 = 50

Subtract 30 from both sides of the equation:

5a = 20

Divide both sides of the equation by 5:

a = 4

Therefore, the value of "a" is 4.

User David Moye
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