The mean of 25 observations was found to be 78.4. But later on it was found that

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The mean of 25 observations was found to be 78.4. But later on it was found that 96 were misread as 69. The correct means is-

Options:

A . 76.54

B . 78.4

C . 79.48

D . 81.32

Answer: Option C

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Question 1. The average of five numbers is 306.4. The average of the first two numbers is 431 and the average of the last two number....last two numbers is 214.5. What is the third number?

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Question 7. A shop of electronic goods is closed on Monday. The average daily sales for remaining six days of a week is Rs. 15,640 a....Saturday is Rs. 14,124. The sales on Sunday is -

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