Math, asked by laiba8776, 1 year ago

let add and subtract
a)(4hr 33min 20sec)+(9hr 52min 25sec)
b)(6hr42min2sec)-(2hr 55min 42sec)
c)(18hr 19min 15sec)+(9hr 55min 48sec)
d)(23hr 7min)-(19hr 29min 18sec)​

Answers

Answered by reddi94
1

Step-by-step explanation:

a.13hr 85min 45sec

b. 4hr 13min 40sec

c. 27hr 74min 33sec

d. 4hr 22min 18sec

Answered by kingofself
1

Answer:

Let add and subtract:

1 hr = 60 minutes

1 min = 60 secs

Hence the number of second in 1 hr is,  

1 hr = 60 \times 60 = 3600 sec

a)(4hr 33min 20sec)+(9hr 52min 25sec) = 13hr 85 min 45sec

                                                      = 14 hr 25 min 45 sec

b)(6hr42min2sec)-(2hr 55min 42sec) = 3 hr 46 min 20 sec

c)(18r 19min 15sec)+(9hr 55min 48sec) = 27 hr 74 min 63 sec

                                            = 28 hr 75 min 3 se

d)(23hr 7min)-(19hr 29min 18sec) = 3 hr 37 min 42 sec

   These are the answers of the given questions.

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