The average of 7, 11, 15, x, 14, 21,25 i

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Target Exam

CUET

Subject

General Test

Chapter

Numerical Ability

Topic

Average

Question:

The average of 7, 11, 15, x, 14, 21,25 is 15, then the value of x is :

Options:

12.5

13.5

Correct Answer:

Explanation:

Average = \(\frac{Sum\;of\;observations}{no.\;of\;observations}\)

⇒ \(\frac{7+11+15+x+14+21+25}{7}\) = 15

⇒ 93 +x = 105

⇒ x = 12