Today is 1 July 2020. Joan has a portfolio which consists of two different types of financial instruments thenceforth referred to as instrument A and instrument ). Joan purchased all instruments on tuly 2012 to create this portfolio and this portfolio is composed of 35 units of instrument A and 36 units of instrument Instrument A is a zero-coupon bond with a face value of 100. This bond matures at par. The maturity date is 1 January 2030, Instrument Bis a Treasury bond with a coupon rate of 2 - 4.31% pa. and face value of 100. This bond matures at par. The maturity date is 1 January 2023 (a) Calculate the current price of instrument A per 100 face value Round your answer to four decimal places. Assume the yield rate is 2.53% pa