The mean of a, b, c, d and e is 28. If the mean of a, c and e is 24, what is the mean of b and d?
Mean = 
= 28
a + b + c + d + e = 28 * 5
= 140
= 24
a + c + e = 72
a + b + c + d + e – a – c – e = 140 - 72
b + d = 68
Therefore, mean = 
= 
= 34
13
The mean of a, b, c, d and e is 28. If the mean of a, c and e is 24, what is the mean of b and d?
Mean = = 28
a + b + c + d + e = 28 * 5
= 140
= 24
a + c + e = 72
a + b + c + d + e – a – c – e = 140 - 72
b + d = 68
Therefore, mean =
=
= 34