Practicing Success
The ratio between the speeds of two trains is 7 : 11, if the first train runs 1400 kms. in 20 hours, then the sum of the speed (in km/h) of both the train is: |
200 180 110 70 |
180 |
Speed of first train = \(\frac{1400}{20}\) = 70 km/h Ist : IInd 7 : 11 = 18 ↓ ↓ ×10 ×10 ↓ ↓ 70 180 |