Question

the mean of a,b,c,d and e is 28 if the mean of a,c,&e is 24 find the mean of b and d

Answer 1

Mean of a,b,c,d,e is 28. sum of a,b,c,d and e=5(28)=
140. Mean of a,c and e=24 .Sum of a,c,e =24(3)=72. Sum of b and d =140-72=68.Average of b and d=68/2 =34. 34 is the answer. hope it helps you...