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

Commodity	A	B	C
Price Relative	150	130	180
Weight	$x$	$3x$	$y$

If the sum of weights is 30 and the index for the set is 144, then the values of $x$ and $y$ are:

The increase in the sale of shawls during winters is an example of :

Which of the following statements are correct ?

(A) Index number are free from units

(B) Index number represents specialised averages in percentage

(C) $P_{01} = \frac{\Sigma P_0}{\Sigma P_1} \times 100$

(D) Index numbers are helpful in formulating and adopting appropriate economic policies

Choose the correct answer from the options given below :

The wholesale price index (or price relative) of rice in 2018 compared to 2014 is 150. If the cost of rice was Rs. 16 per kg in 2014, then per kg cost of rice in 2018 is :

If Paasche's index number is 160 and Laspeyre's index number is 250, then Fisher's index number is :

For the given 7 values 5, 7, 9, 2, 2, 3, 4 the five year moving averages are

The rise in prices before Christmas is an example of