if `A,B,C` has mean mass `52.2 Kg & c ,d ,E ` has mean mass `53.2 kg.` Then mean mass of `A,B,C,D,E` is what?

if A,B,C has mean mass 52.2Kg &c,d,E has mean mass 53.2kg. Then mean mass of A,B,C,D,E is what?

Sum of molecular mass of A,B,C,D (i.e., A+B+C+D) is equal to:

The mean of a, b, c, d and e is 28. If the mean of a, c and e is 24, then mean of b and d is

Block A has a mass of 2 kg and block B has a mass of 20 kg if the coefficient of kinetic friction between block B and the horizontal surface is 0.1, and B is accelerating towards the right with a = 2 m//s^(2) , then the mass of the block C will be -

If the mean of a, b, c, d and e is 28, mean of a, c and e is 24 and mean of b and d is n^2 - 2, then the value of n is ± k, where k is

The average score of A, B and C in a test is 78 and that of C, D and E is 52. The average score of E and F is 48 and that of E and C is 60. What is the average score of A, B, C, D, E and F?

The mean of a, b, c, d and e is 36. If the mean of b, d and e is 32, what is the mean of a and c?