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7 February, 09:45

Jamil traveled 210 miles, which is 70% of the total distance to his grandfathers house. How many more miles does he need to to reach his grandfathers house?

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  1. 7 February, 10:11
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    He needs to travel 90 more miles to reach his grandfathers house

    Step-by-step explanation:

    The distance already covered can be expressed as a percentage of the total distance as shown;

    t=p*T

    where;

    t=distance traveled by Jamil

    p=percentage of total distance already traveled

    T=total distance to grandfathers house

    In our case;

    t=210 miles

    p=70%

    T=unknown

    replacing;

    210 = (70/100) * T

    T=210*100/70

    T=3*100=300

    T=300

    The total distance to grandfathers house=300

    Remainder=Total distance-distance already covered

    where;

    Total distance=300 miles

    distance already covered=210 miles

    replaced;

    Remaining distance=300-210=90 miles
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