The arithmetic mean of numbers a, b, c, d, e is M. What is the value of `(a-M)+(n-M)+(n-M)+(d-M)+(e-M)`?

The arithmetic mean (average) of m and n is 50, and the arithmetic mean of p and q is 70. What is the arithmetic mean of m, n, p and q?

If the average of m numbers is n^(2) and that of n numbers is m^(2) ,then the average of (m+n) numbers is m-n (b) mn(c)m+n (d) (m)/(n)

If m and n are natural numbers such that 2^(m)-2^(n)=960, what is the value of m?10 (b) 12 (c) 15(d) cannot be determined

Prove that the sum of m arihmetic means between the two numbers is to the sum of n arithmetic means between them is m:n.

a, b, c, d and e are integers .If a, b, c, d and e are geometric progression and lcm(m, n) is the least common multiple of m and n, then the maximum value of (1)/(1cm (a,b)) + (1)/(1cm (b,c)) + (1)/(1cm(c,d)) + (1)/(1cm (d,e)) is

If M = a (m + n) and N=b(m-n), then the value of (M/a+N/b) div (M/a - N/b) is:

The empirical relation between mean, mode and median is (a) Mod e\ =\ 3\ M e d i a n\ -2\ M e a n (b) Mod e=2\ M e d i a n-3\ M e a n (c) M e d i a n=3\ Mod e-2\ M e a n (d) M e a n=3\ M e d i a n-2\ Mod e

The empirical relation between mean, mode and median is Mod e = 3 M e d i a n -2 M e a n Mod e=2 M e d i a n-3 M e a n M e d i a n=3 Mod e-2 M e a n M e a n=3 M e d i a n-2 Mod e