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10 का औसत 15 ज्ञात किया गया । बाद में ज्ञात हुआ की औसत ज्ञात करते समय एक संख्या 36 के स्थान पर 26 अंकित पर दी गई । सही औसत ज्ञात करे ?
A. 20
B. 18
C. 16
D. 14

1 Answer

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Best answer
Correct Answer - C
According to the question
The average of 10 numbers is =15
`therefore` Sum of 10 numbers are =15x10=150
He mistakenly writes one number 26 instead of 36.
`therefore` difference =36-26=10
`therefore` Actual sum of 10 numbers =150+10=160
Actual average =`160/10` =16

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