At an average speed of 50kmph for Entire Journey, he would Cover the Entire Journey in 185/50=3hrs+7/10Hours
Now time Already he took to travel initial 85 kms, so to complete the whole trip in just 3+7/10hrs(i.e. @50kmph), he must travel remaining distance in (3+7/10H)-(2H)=1+7/10Hours= 17/10Hours=17/10*60Minutes=102Minutes
that is the whole problem
if we see the general mba format they have a lot of other things as well
cucet's mba doesn't even have a proper verbal section