List of top Quantitative Aptitude Questions on Statistics asked in BHU PET

The mean of 31 results is 60. If the mean of the first 16 results is 58 and that of the last 16 results is 62, then the 16th result is:
The mean weight of 80 students is 58 kg. After rechecking, it was discovered that the two weights 52 and 68 were misread as 25 and 86. The correct mean is: