The Simple Aggregate Price Index divides the sum of current-year prices by the sum of base-year prices and multiplies by $100$, i.e. $\dfrac{\sum p_1}{\sum p_0}\times 100$.

In the simple aggregate method, all the current-year prices are added together, all the base-year prices are added together, and the two totals are compared:

$P_{01} = \frac{\sum p_1}{\sum p_0} \times 100$

where $p_1$ are the current-year prices and $p_0$ the base-year prices. There are no weights and no price relatives — it is a direct ratio of aggregate prices.

Option (1) $\sum\frac{p_1}{p_0}\times 100$ is the (unweighted) relatives method, while options (2) and (4) invert the ratio, so they are incorrect.

The correct value index number by the simple aggregate method is $V_{01}=\dfrac{\sum p_1 q_1}{\sum p_0 q_0}\times 100$. The given expression $\sum\dfrac{p_0 q_0}{p_1 q_1}\times 100$ has the base and current years reversed and sums a per-item ratio, so it is wrong — the statement is False.

The value of an item is price $\times$ quantity. The value index number aggregates the current-year values and the base-year values and takes their ratio:

$V_{01}=\frac{\sum p_1 q_1}{\sum p_0 q_0}\times 100$

Here $p_1 q_1$ is summed over all items in the numerator (total current value) and $p_0 q_0$ in the denominator (total base value).

The statement's formula, $\displaystyle\sum \frac{p_0 q_0}{p_1 q_1}\times 100$, is incorrect in two ways: (i) it puts base-year value on top and current-year value below (the ratio is inverted), and (ii) it sums the ratio of individual values rather than taking the ratio of the aggregate values. Hence it does not represent the value index number.