Question

I this it's wrong ;3 http://prnt.sc/czd9y4

Answer 1

I'd have to look at the assignment again

Answer 2

Wouldn't this be A?

Answer 3

i think so

Answer 4

Hint:
Add:
20-15-40
10-12-30
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Carry when 60 is reached for minutes and seconds.

Answer 5

yeah then its A

Answer 6

@yournightmare
\(\color{red}{Carry}\) when 60 is reached for minutes and seconds.