INET || Elementary Mathematics || Mean, Median & Mode || Quiz 2020

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Question 1

Let , and are three positive integers such that and their arithmetic mean is 20. What is the least possible value of for which, median is

• A25
• B21
• C28
• DDoes not exist

Question 2

If the average of and is and if the average of and is y, what will be the average of and 3y?

• A
• B
• C
• D

Question 3

In an asymmetrical distribution, if the mean and median of the distribution are 270 and 220 respectively, then the mode of the data is

• A120
• B220
• C280
• D370

Question 4

The mean of 5 numbers is 15. If one more number is included, the mean of the 6 numbers becomes 17. What is the included number?

• A24
• B25
• C26
• D27

Question 5

The mean and median of 5 observations are 9 and 8 respectively. If 1 is subtracted from each observation, then the new mean and the new median will respectively be

• A8 and 7
• B9 and 7
• C8 and 9
• DCannot be determined due to insufficient data

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