KFC rivonia operates $28$ hours shift each day in the past $1,000$ twist meals were produced by the end of each day the use of new technologies enabled them to increase productivity by $30\%$ productivity does not approximately $162\mathrm{.}5$ twist meal meal per hour b$40\mathrm{.}62$ means per hour c $81\mathrm{.}25$ to St means per hour d$32\mathrm{.}52$ spell