Question
The average of 5 positive
integers was initially computed as 30. However, it was discovered later that an error had occurred during the calculation, as 12 was mistakenly recorded instead of 21. Determine the accurate average.Solution
ATQ,
Incorrect sum of ive numbers = 30 X 5 = 150 Correct sum = 150 - 12 + 21 = 159 So, correct average = 159 ÷ 5 = 31.8
8, 12, 23, 40, 66, 103
- Find the wrong number in the given number series.
10, 14, 23, 48, 99, 218 Find the Wrong number in the given number series.
3, 6, 2, 8, 2.4, 9.6
Find the wrong number in the given number series.
32, 50, 72, 98, 128, 160
8Â Â Â Â 10Â Â Â Â 36Â Â Â Â Â 216Â Â Â Â Â 2592Â Â Â Â 62208
- Find the wrong number in the given number series.
8, 16, 32, 70, 128, 256 16, 10, 12, 20, 48, 107
Find the wrong number in the given number series.
26, 38, 60, 110, 206, 398
156, 182, 212, 240, 272, 306
78, 88, 118, 208, 468, 1288