The average income of a group of 9 workers is Rs 137.30 and that of another group of 7 workers is rs 95.06.The average income of all the persons is:

The mean income of a group of workers is bar(x) and that of another group is bar(y) . If the number of workers in the second group is 10 times the number of workers in the first group, then the mean income of the combined group is :

The mean income of a group of workers is bar(X) and that of another group is bar(Y) . If the number of workers in the second group is 10 times the number of workers in the first group, then the mean income of the combined group is

The mean income of a group of workers is bar(X) and that of another group is bar(Y) . If the number of workers in the second group is 10 times the number of workers in the first group, then the mean income of the combined group is

The average income of a group of persons is vec x and that of another group is vecy. If the number of persons of both group are in the ratio 4 : 3, then average income of combined group is:- (1) (vec x + vec y)/7 (2) (3vec x + 4 vec y)/7 (3) (4 vec x + 3vec y)/7 (4) Non of these

The average annual income (in Rs) of certain agricultural workers is S and that of other workers is T . The number of agricultural workers is 11 times that of other workers. Then the average monthly income (in Rs) of all the workers is (S+T)/2 (b) (S+11 T)/2 (c) 1/(11 S)+T (d) (11 S+T)/(12)

If the average wage of 50 workers is Rs. 100 and the average wage of 30 of them is Rs. 120. Find the average wage of remaining workers.

A factory employs 100 workers of whom 60 in the first shift and 40 work in the second shift. The average wage of all the 100 workers is Rs. 38 If the average wage of 60 workers of the first shift is Rs. 40, then the average wage of the remaining 40 workers of the second shift is