Question 4684 – 2012 December UGC NET Paper 1
April 25, 2024ICT
April 25, 2024Question 4683 – 2012 December UGC NET Paper 1
The number of observations in a group is 40. The average of the first 10 members is 4.5 and the average of the remaining 30 members is 3.5. The average of the whole group is
Correct Answer: C
Question 9 Explanation:
The Avg of first 10 numbers = 4.5
Total observations =104.5=45
Total observations =104.5=45
The Avg of next 30 members = 3.5
Total observations = 30 × 3.5 = 105
40 members total observations = 45 + 105 = 150
Avg. of 40 members observation = 150/40 = 15/4
4
15/2
15/4
6