Question 1189983
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x = total distance to travel, in km


The driver has done 115+85 = 200 km so far which is 80% of the way there.


{{{part/whole = percent/100}}}


{{{200/x = 80/100}}}


{{{200*100 = 80x}}}


{{{20000 = 80x}}}


{{{80x = 20000}}}


{{{x = 20000/80}}}


{{{x = 250}}}


Or as a slight alternative, we're solving the equation {{{0.80x = 200}}} to get {{{x = 250}}}


The total distance s/he needs to travel is 250 km.


If the driver has done 200 km so far, then there's 250-200 = 50 km left to go.


Answer: c) 50
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