Question

the mean of 10 Numbers is 47 if one number is excluded mean of the remaining number become 46 find the excluded numbers​

Answer 1

Answer:

56

Step-by-step explanation:

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Answer 2

Given that:

• The mean of 10 Numbers is 47.
• One number is excluded mean of the remaining number become 46.

To Find:

• The excluded number.

Let us assume:

• The excluded number be x.

We know that:

• Mean = Sum of observations / No. of observations

When the mean of 10 Numbers is 47:

↣ 47 = Sum of observations / 10

↣ Sum of observations = 47 × 10

↣ Sum of observations = 470

When a number 'x' is excluded:

• Sum of observations = 470 - x
• No. of observations = 10 - 1 = 9
• Mean = 46

Finding the excluded number:

↣ 46 = (470 - x) / 9

↣ 46 × 9 = 470 - x

↣ 414 = 470 - x

↣ x = 470 - 414

↣ x = 56

Hence,

• The excluded number is 56.