CPO 22: Date: 10/11/2022, Shift 2

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CPO 22: Date: 10/11/2022, Shift 2

Question 1

The average of 15 results is 21. The average of the first 7 of those is 21 and the average of the last 7 is 20. What is the 8^th result?

15 परिणामों का औसत 21 है। उनमें से पहले 7 का औसत 21 है और अंतिम 7 का औसत 20 है। 8वां परिणाम क्या है?

Options

A

31

B

25

C

22

D

28

Solution:

Correct Answer:

D

28

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