Question

subtract : 20 min 30 s from 30 min 20 s​

Answer 1

Step-by-step explanation:

Subtract 5 hr. 16 min. 48 sec. from 12 hr. 28 min. 16 sec.

Subtraction of Hours and Minutes

16 sec. < 48 sec.

So, we borrow 1 min.

= 60 sec. From 28 min.

60 sec. + 16 sec. = 76 sec.

76 sec. – 48 sec. = 28 sec.

solve like this

Answer 2

Answer:

1 m = 60 sec

20 m = 60 multiplied with 20 = 1200sec

20 min 30 sec = 1200 sec + 30 sec = 1230 sec

30 min = 30 multiplied with 30 = 900 sec

30 min 20 sec = 900 sec + 20 sec = 920 sec

subtract 1230 from 920

= 1230 - 920

= 310

I HOPE THIS ANSWER HELPS YOU