Question 1189983
A driver travels 115 km on his first day. On his second day he travels 85 km. If this driver has traveled 80% of the distance, how many kilometers does he have left to travel?
a)20  b)40  c)50  c)160  d)200
<pre>Distance travelled after day 2: 115 + 85 = 200 km
With 80% of total distance already travelled, he/she has .2 or 20% (100% - 80%) left
to travel, which results in the following PROPORTION: {{{matrix(2,3, 200/R, "=", .8/.2, 200/R, "=", 4)}}}
                                                        4R = 200 ---------- Cross-multiplying
                       Remaining distance to travel, or {{{highlight_green(matrix(1,6, R, "=", 200/4, "=", 50, km))}}}</pre>