Question

Average of 10 values is 200. Sum of nine of them is 1850. Find 10th value,​

Answer 1

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Answer 2

10th value = 150

Given :

• Average of 10 values is 200

• Sum of nine of them is 1850.

To find :

10th value

Solution :

Step 1 of 2 :

Calculate the sum of 10 values

Here it is given that the average of 10 values is 200

∴ Sum of 10 values

= 10 × 200

= 2000

Step 2 of 2 :

Calculate 10th value

It is given that Sum of nine of them is 1850.

Thus we get

10th value

= Sum of 10 values - Sum of 9 values

= 2000 - 1850

= 150

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