The current price of a stock is $50 the annualrisk-free rate is 6% and a 1-year

The current price of a stock is $50 the annualrisk-free rate is 6% and a 1-year call option with a strike priceof $55 sellsfor $7.20. What is the value of a put option assuming thesame strikeprice and expiration date as for the call option?