Question

13 h 5 min -3*(2 h 48 min:6+3 h 47 min)=

Answer 1

13 h 5 min -3·(2 h 48 min:6+3 h 47 min)=13 h 5 min -3·(128 min:6+3 h 47 min)=13 h 5 min -3·(28 min+3 h 47 min)=13 h 5 min -3·(3 h 75 min)=13 h 5 min -3·(4 h 15 min)=12 h 65 min -12 h 45 min=20 min