Question

A bus travels at v km per hour. It is going from Delhi to Mumbai. After the train has
travelled 15 hours, Mumbai is still 80km away. What is the distance from Delhi to
Mumbai? Express it using v.

Answer 1

Speed =v

Time=15 hours

S=v*t

=15v

Distance remaining=80 km

Total distance=80+15v km

Answer 2

Speed of the bus =v kmph

Time taken =15 hours

Distance travelled = d km

we know that (s=d/ t)

so,distance = s×t

d =v×15 =15v km

remaining distance = 80 km

total distance= 15v+ 80 km