Question

say the answer for 2nd questions ​

Answer 1

Uniform Speed of train = 75 km/hr

(i)

Time of travel = 20 minutes

$\text{Distance covered = } \tt75 \times \frac{20}{60} \\ \\ \to \frac{75 \times 2}{6} \\ \\ \to \frac{75}{3} \: \: = \sf 25 \: km$

(ii)

Distance to be covered = 250 km

$\text{Time taken} = \tt \frac{250}{75} \\ \\ \to \frac{25 \times10 }{75} \\ \\ \to \sf \frac{10}{3} \: \: hrs$