Question

Calculate Quantity Index Number using Simple Aggregate method

Commodity	I	II	III	IV	V
Base year Quantity	140	120	100	200	225
Current year Quantity	100	80	70	150	185

Answer 1

Commodity	Base Year Quantities q0	Current Year Quantities q1
I	140	100
II	120	80
III	100	70
IV	20	150
V	255	185
Tota	785	585

From the table, `sum"q"_0` = 785, `sum"q"_1` = 585

Quantity Index Number (Q₀₁) = `(sum"q"_1)/(sum"q"_0) xx 100`

= `585/785 xx 100`

= 74.52