Page 3 - LN 7
P. 3
We know that, 60 minutes = 1 hour
Now, 80 minutes = 60 minutes + 20 minutes
= 1 hour + 20 minutes
= 1 hour 20 minutes
Step 3: The LHS can now be written as
4 hours 80 minutes = 4 hours + 80 minutes
= 4 hours + 1 hour + 20 minutes
= 5 hours + 20 minutes
= 5 hours 80 minutes
Therefore, the required answer is 5.
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