CHSL 21 10-06-2022 Shift 3


Question 1

The average of 10 observations is 21. A new observation is included and the average of these 11 numbers is 1 less than the prevoius average. The 11th observation is ______.
10 प्रेक्षणों का औसत 21 है। एक नया 11वां प्रेक्षण शामिल किए जाने पर नए औसत में 1 की कमी आ जाती है। 11वां प्रेक्षण ज्ञात कीजिए।

Options

A

21

21

B

10

10

C

11

11

D

12

12


Solution:

Correct Answer:

B

10

10


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