Question

after going 3/4 of my journey, I find that 15km more is to be covered. how much is the total distance to be covered ?

Answer 1

let total distance be x
so,

distance left=15km

so,

x/4=15
x=60.

Answer 2

Let the total distance be x km
now, while covering 3/4th of the journey, the distance covered then would be
(x-15) km
now,given
3/4x=x-15
3x=4(x-15)
3x=4x-60
x=60 km