Answer:Answer belowStep-by-step explanation:a. 11:30 + 2 hours and 10 mins10+30 = 4011+2 =1313:40 (24 hour format)1:40 pm (12 hour format)b. 13:40 + 2 hours 25 mins40+ 25 = 65 = 1 hour 5 mins= 1 hour 5 mins + 2 hours= 3 hours 5 mins= 13:00 + 3 hours 5 mins=13+3=16hrs+5 mins=16:05 (24 hour format)=4:05 pm ( 12 hour format)