Answer :

we have to change 4.81 hours to minutes, so we get that

[tex]4.81\text{ hours=}4.81\cdot60=288.6\text{ minutes}[/tex]

And now we have to divide 288.6 minutes by 5.5

[tex]\frac{288.6}{5.5}=52.47\approx52[/tex]

So 52 problems could be solved in 4.81 hours

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