Question

The average of three numbers is 8. If two of the numbers are 9 and 7 the third number is​

Answer 1

Answer:

THE sum of the numbers will be

8*3=24

11+7=18 and 24-18=6. So the last number is 6

The average of 6, 7, 11 is 8. So the third number is 6.

Step-by-step explanation:

Answer 2

Given:-

• The average of three numbers is 8.
• Two of the numbers are 9 and 7.

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To Find:-

• Third number.

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Solution:-

Let,

• the third number be x.

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According to the question,

Formula used:-

→ Average = (Sum of numbers) / (Total number)

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→ 8 = (9 + 7 + x)/3

→ 9 + 7 + x = 8 × 3

→ 16 + x = 24

→ x = 24 - 16

→ x = 8

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Hence,

• The third number is 8.