Question

9 hours 20 minutes from 20 hours

Answer 1

Answer: 9.33 hours

Step-by-step explanation: we know that,

1 hour=60 min then,

1 min=1/60 hour

given,9 hours 20 min it means that,

9 hours+20 min that is

1 min =1/60 hour then 20 min =20(1/60)=1/3 hours

9 hours + 1/3 hours = 9.33

Answer 2

Convert them into minutes.

9hr 20mins= 9×60+20= 560

20hrs= 20×60= 1200

1200-560= 640

640÷60= 10 hrs 40 mins

Ans. 10hrs 40mins

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