Calculate the price index using weighted average of relatives method for the food consumption in a student hostel in a month. Use data of year 1997 as base year for calculations.

152.07

The correct answer is Option (1) → 152.07

Weighted price relative for year 2001 on the base period 1997 = $I_{2001} = \frac{\sum \frac{p_n}{p_0}(p_0 Q_0)}{\sum p_0 Q_0} \times 100$

$= \frac{5140}{3380} \times 100$

$= 152.07$