Advertisements
Advertisements
Question
The average weight of 14 students was calculated as 71. But it was later found that the weight of one student had been wrongly entered as 42 instead of 56 and of another as 74 instead of 32. The correct average is
Options
75
80
68
69
MCQ
Solution
69
Explanation:
Required average`=(14xx71+56-42+32-74)/14`
`=966/14=69`
shaalaa.com
Average and Age
Is there an error in this question or solution?