If the mean of a, b and c is b, then a + c in terms of b is ______.

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

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?

Mean of a, b, c is________

If a,b,c are first three terms of a G.P.If the harmonic mean of a and b is 20 and arithmetic mean of b&c is 5, then no term of this G.P.is square of an integer arithmetic mean of a,b,c is 5 c.b=+-6 d.common ratio of this G.P.is 2

a, b, c are the first three terms of a geometrical series. If the harmonic mean of a and b is 12 and that of b and c is 36, find the first five terms of series.

If a ,b ,c are first three terms of a G.P. If the harmonic mean of a and b is 20 and arithmetic mean of b and c is 5, then