Progression (Sequence and Series)Hard

Question

If the mean of the set of numbers x1, x2, x3,....,xn is , then the mean of the numbers xi + 2i, 1 ≤ i ≤ n, is-

Options

A. + 2n
B. + n + 1
C. + 2
D. + n

Solution

-

Create a free account to view solution

View Solution Free
Topic: Progression (Sequence and Series)·Practice all Progression (Sequence and Series) questions

More Progression (Sequence and Series) Questions

Suppose a,b,c are in AP and a2, b2, c2 are in GP. If a < b < c and a + b + c = , then the value of a is...The sum of the first 10 terms of a certain G.P. is equal to 244 times the sum of the first 5 terms. Then the common rati...Let a, b and c be distinct non-negative numbers. If the vectors and lie in a plane, then c is...If x,y,z are in A.P. , then magnitude of its common difference is-...The S.D. of 15 items is 6 and if each item is decreased by 1, then standard deviation will be-...