1.
Find the median : 8,4,5,11,27,19,18
2.
If k, k+3, 2k, 2k+3 are in ascending order and median is 9, what is the value of k?
3.
If Efx= 56 + 7a and Ef = 16 + 2a, X = ?
4.
If Efx = 40 + 8a, N = 4 + 2a, X = 5, a = ?
5.
If median and mean of a distribution are 14 and 15 respectively, value of mode is……
6.
What is the median of the following data?
| x | 0-10 | 10-20 | 20-30 | 30-40 | 40-50 |
| f | 5 | 5 | 2 | 8 | 4 |
7.
If, 2k - 3, k + 7, 2k + 3, 3k - 2 are in ascending order and median is 14, find the value of k
8.
If the average weight of 8 boys in a class is 45 kg, and that of 12 girls is 40 kg. What is the overall average of all of them?
9.
The sum of all marks obtained by 50 students in mathematics is 3000. Find the average mark
10.
If the number if items (N) =12 +a, X = 30 and Efx = 600, Find the value of a.
11.
If, X = 20 + a, N = 14 & Efm = 322, Find the value of a.
12.
If N = 12k+9, and Efm = 60k + 45, Find X.
13.
If N = 7k+2, Efm = 49k +14, Find X.
14.
If X = 19m + 2, Efm = 133m+14, Find the number of terms.
15.
The mean weight of some men is 56kg, If a man weighing 74 kg is added, the average increases by 3 kg. Find the number of men at the start.
16.
The average of 12 girls is 18 kg and the average of 8 boys is 24 kg. Find their overall average weight.
17.
The average age of 11 Nepal national football players is 23 yrs. If the average age is increased by 2 years is the age of the coach is also included, then what could be the age of coach?
18.
In a group of 8 people, a boy weighing 55 kg is replaced by another boy thereby increasing average weight of the group by 1.5 kg, then how much does the new boy weight?
19.
Average weight of 6 people is 42 kg. if one person is removed then the average decrease by 2 kg. What is the weight of removed person?
20.
The average marks obtained by a student is 57. Among the 10 papers she attended, the mark on science was mistakenly entered as 38 instead of 83. What will be the actual average marks obtained by her?
