Is this proper reasoning for below question? DNA replication from the ORI point

Question

Is this proper reasoning for below question?

DNA replication from the ORI point on bacterium can proceed bidirectionally, so divide genome size by 2. --> 6*10^6 /2 base pairs

3*106 base pairs is 6*106 nucleotides, so to replicate the entire genome it would take 6*10^6 nucleotides divided by 1000 nucleotides/second --> 6000s

A bacterium has a genome size of 6*106 base pairs. There is one Origin of Replication (ORI) and each DNA polymerase catalyzes the addition of 1,000 nucleotides/second. How much time is needed to replicate the entire genome of the bacterium?

Explanation / Answer

Ans: Bacteria whose genome size is 6*106 bp, typically have a single origin of replication in a circular chromosome. With fork speeds of up to 1000 nucleotides per second, they can replicate their genome in less than an hour.

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