KARACHI -Dollar took strength in inter bank and cash free market on Tuesday, it was traded at highest rate of Rs 99.30 in inter bank.  According to the data provided by the Forex Association of Pakistan, dollar traded at lowest rate of Rs 99.20 and highest rate of Rs 99.30 in inter bank market while it was traded at minimum price of Rs 99.30 and maximum price of Rs 99.50 in cash free market.