KARACHI - Rupee took strength against dollar in inter bank and cash free market as dollar traded at highest price of Rs 99.10 in open market on Tuesday.  According to the data provided by the Forex Association of Pakistan, dollar traded at lowest price of Rs 98.65 and highest price of Rs 98.70 in inter bank while it was traded at minimum price of Rs 98.90 and maximum price of Rs 99.10 in open market.