Taylor's tool life equation is used to estimate the life of a batch of identical HSS twist drills by drilling through holes at constant feed in $20 \: mm$ thick mild steel plates. In test $1$, a drill lasted $300$ holes at $150$ rpm while in test $2$, another drill lasted for $200$ holes at $300$ rpm. The maximum number of holes that can be made by another drill from the above batch at $200$ rpm is_________ (correct to two decimal places).
