Given the data for the sales of a product in a state is as follows:

Year	2005	2006	2007	2008	2009
Sales (In lakh Rs)	150	130	160	170	200

The equation of the straight-line trend by method of least squares is:

In the equation of trend line $y_t = a + bx$, a and b represent :

Match List - I with List - II.

Given that $\Sigma p_0 q_0 = 150$, $\Sigma p_0 q_1 = 80$, $\Sigma p_1 q_0 = 240$, $\Sigma p_1 q_1 = 200$.

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 :

For a given data of 5 observation $\sum y = 311$, $\sum x^2 = 10$ and $\sum xy = 90$. The equation of the trend line is :

The prices and the quantities of three commodities are given are :

The Laspeyre's price index number for year 2009 with year 2006 as base is 200. The value of $x$ is :

From the data given below the Laspeyre's price index for the year 2016 with year 2010 as base year is