Which of the following statements(s) is/are correct?
I. The average of 24 numbers is 22. If the average of the first 9 numbers is 18, then the average of the remaining numbers will be 24.4.
II. Average of 149, 223, 520, 287 and 251 is 286.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. Both I and II.
Statement I:-
Sum of 24 numbers = 24 × 22 = 528
Sum of first 9 numbers = 9 × 18 = 162
Remaining sum = 528 - 162 = 366
Average = 366/15 = 24.4
So, Statement I is correct
Statement II:-
Average = (149 + 223 + 520 + 287 + 251)/5 = 1430/5 = 286
So, Statement II is correct
Thus, Both statements are correct