Question
The average age of a group of 24 persons is found to be
30 years. Later it is found that age of two of the persons is calculated as 30 and 60 instead of 56 and 10. Find the correct average age of the group.Solution
Required average = {(24 × 30) – 30 – 60 + 56 + 10}/24 = 29 years
More Average Questions
Given below are two number series I and II where each series has a wrong (odd one out) number. The number that will actually come in place of the wrong ...
24, 12, 18, ?, 157.5, 708.75
If 43 34 x 36 39 38
Then, (x/2) + 0.5 + x = ?
...3 2 2 3 8 ?
...To find the Next number in the given series.
342 510 726 996 1326 ?
...Direction: Which of the following will replace ‘?’ in the given question?
5, 18, ‘?’, 126, 296, 586, 1044
5 6.5 20 113.5 799 ...
8 24 12 ? 18 54
91 93 97 100 ? 113
20, 30, 40, 55, ?, 160
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