Question

(i) 5 days 11 hours =
(a) 121 hours (b) 126 hours (€) 131 hours
(ii) On converting 12 hours 7 minutes into seconds, we get
(a) 42620s (b) 43620s
(c) 41620s
(iii) On adding 46 min. 35 sec. and 39 min. 49 sec., the sum is
(a) 86 min. 24 sec. (b) 1 h 26 min. 24 sec. (c) Both (a) and (b)​

Answer 1

Answer:

Step-by-step explanation:

5 days 11 hours =

5*24+11

120+11

131 hours

12 hours 7 minutes =

(12*60+7)*60

(720+7)*60

727*60

43620 seconds

46 min 35 sec.+39 min 49 sec

86 min 24 sec. Or 1 h 26 min. 24 sec.

Answer 2

Step-by-step explanation:

1)option c 131 hours because 1 day = 24 hrs so 5 days = 24×5=120 so 120+11=131hrs

2) option b is correct use the above method

3)