<prompt> If a conraceptive has failure rate of 15, how many unplanned pregnancies will the female have in her reproductive period.3.544.55  <response>: Ans. is c i.e., 4.5 Failure rate per HWY Total accidental pregnancies---Total months of exposurex 1200A womans reproductive period is roughly from 15 to 45 years, i.e a period of 30 years--- Park24the - 521 Thus,15 Total accidental pregnancies---30 x 12x 1200Total accidental pregnancies 4.5 