Arithmetic

Central Tendency

Easy

The average of the four consecutive odd numbers is 16. What is the third number in the descending order?

✅ Correct Option: 2

Let numbers be $x, x+2, x+4, x+6$ . Average $= x+3 = 16$ , so $x = 13$ . Numbers are 13, 15, 17, 19. In descending order: 19, 17, 15, 13. Third number is 15.

2025: 19 May Shift 2

In a moderately asymmetrical distribution, the mode and mean are 31.5 and 34.5, respectively. Calculate the median:

2025: 29 May Shift 1

The median and mean of 7 observations are 9 and 11 respectively. If 2 is subtracted from each observation, then the new median and the new mean will respectively be which of the following?

2022: 17 Aug Shift 1

The median of data in numerals is

2025: 30 May Shift 2

Match List I with List II

List I	List II
Statistical Measure	Definition
(A) Mode	(I) Sum of all observations divided by their count
(B) Median	(II) Measure of the spread from the mean
(C) Mean	(III) Central value when observations are arranged in order
(D) Standard Deviation	(IV) Observation which has the highest frequency

Choose the correct answer from the options given below:

2023: 21 May Shift 1

The average of 12 numbers is 15 and the average of the first two numbers is 14. What is the average of the remaining numbers?

2025: 22 May Shift 2

The average of marks of 15 papers is 45. The average of marks of the first 8 papers is 48 and that of the last 8 papers is 40. The marks of the eight paper will be:

The average of the four consecutive odd numbers is 16. What is the third number in the descending order?

Solution

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