The price relatives and weights of a set of commodities are given below:

If the sum of weights is 40 and the index for the set is 122, find the numerical values of `x and y`.

The Price relative and weight of a set of commoditities are given in the following table If the index for the set is 135 and the sum of the weight is 26, find w_1+ w_2

In each case given below find the value of x.

The price relative to base 100 of a set of commodities are as given in the following tabe : Find the index number using simple average of price relatives .

If the median of the distribution given below is 28.5 , find the values of x and y.

Taking 1975 as the year, with an index number 100, calculate an index number for 1979, based on weighted average of price relatives derived from the table given below: The weights are now change if so that the weight for A is 40 and C is 10 and the total weight is 100. If the value of the index no, in 1979 with the changed weight is 182, calculate the weights applied to B and D.

If the ordered pairs (x ,-1) and (5, y) belong to the set {(a , b): b=2a-3} , find the values of x\ a n d\ ydot

In the figure given below, O is the centre of the cirlce and SP is a tangent. If angleSRT=65^(@) , find the value of x, y and z.

If sum Iomega = 3510 , sum omega =23+ x and index number is 135, find the value of x.

Find the numerical vlaue of x from the diagram given below.

The sum of the deviations of a set of n values x_1, x_2 ,.........x_n measured from 50 is-10 and the sum of deviations of the values from 46 is 70.Find the values of n and the mean.