10. The Danube river cruise journey has been very popular in recent years. The increasing number of passenger needs more efficient catering system inside the cruise too. A recent time study show detailed timing of serving drink at the bar: OBSERVATION (SECONDS) TASKS 1 2 3 4 5 PERFORMANCE (RATING %) Take the order 15 20 24 45" 21 100 Pick the right glass 5 7 Add the drink (and ice if 14 18 19 96 62 21 79 100 110 needed) Pass the drink to the 8 9 54 11 10 80 customer Handle the payment 19 42 20 13 28 90 "Extra chat with the cusomter 10% personal-time factorand a 10% fatigue factor are allowed. To calculate the standard times, the unusual observations should be removed. a. What is the standard time for the tasks?