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If the arithmetic mean of x, x + 3, x + 6, x + 9, x + 12 is 10 then what is the value of x.
  • a)
    58
  • b)
    5
  • c)
    6
  • d)
    4
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
If the arithmetic mean of x, x + 3, x + 6, x + 9, x + 12 is 10 then wh...
Given 
⇒ 5x + 30 = 50
⇒ 5x = 20 ⇒ x = 4
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Community Answer
If the arithmetic mean of x, x + 3, x + 6, x + 9, x + 12 is 10 then wh...
To find the value of x, we need to solve the given equation:

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

Simplifying the equation, we get:

(5x + 30)/5 = 10

Further simplifying, we have:

5x + 30 = 50

Subtracting 30 from both sides, we get:

5x = 20

Dividing both sides by 5, we find:

x = 4

Therefore, the value of x is 4.
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