A) divide 1.5 hrs by 3 to get .5 hr than divided 93mi by 3 to get 31 than add .5hr to another .5hr to get 1hr than add 31 to 31 to get 62 so the answer for A is (1hr=62mi) B)Turn 1.5 hrs to minutes which is 90 than divide by 18 to get 5 minutes and do the same with the miles 93 divided by 18 equals the answer is (5minutes= <span>5.16666666667miles)</span>
Probability of finding no defective bulb =95/100*94/99....86/91 =95!/(85!) / (100!/90!) = 110983/190120 => Probability of finding at least one defective bulb =1-110983/190120 = 79137/190120 = 0.41625 (to 5 decimal places)
