The ratio between the speeds of two trains is 3 : 7, if the first train runs 240 kms. in 5h, then the difference between the speeds (in kms/h) of both the trains is:
Answer & explanation
Correct answer: option 3
Speed of first train = \(\frac{240}{5}\) = 48 km/h
Ist : IInd
3 : 7
According to question,
3R = 48 km/h
1R = 16 km/h
Difference in speeds of both of the trains = (7 - 3) = 4 R
= 4 × 16 = 64 km/h