For the year 2017, with 2015 as base year, the quantity index (upto two decimal) is equal to:

104.32

The correct answer is Option (2) → 104.32

$\text{Quantity index} = \frac{\sum q_1}{\sum q_0} \times 100$

$\sum q_0 = 60+200+50+40+20 = 370$

$\sum q_1 = 65+210+50+35+26 = 386$

$\text{Index} = \frac{386}{370} \times 100 = 104.32$

$\text{Quantity index} = 104.32$