after covering 3/4 of my journey, I find that 15km is left. how much distence is still left
3/4 of the journey covered
total journey = 4/4
15 km is left = 4/4 - 3/4 = 1/4
1/4 =15 kms
3/4 covered = 15 x3 = 45kms
total journey =45+ 15=60kms total
so when 3/4 of journey is covered = 45 kms
distance left to be covered = total distance - distance covered = 60-45=15kms
therefore distance left to be covered =15 kms
hope it helps:-)