Question

answer this question step by step

Answer 1

Train Covers 50(1/2)Km in 1.25 hour Now understand in case of 1.25 hour .25 is 1/4 and 1/4 of an hour is 15 min (60 x 1/4). So 50(1/2) distance is covered in 1 hour 15 min.

Now Question is asking for 3 hour 45 min. which is exactly x3 of 1 hour 15 min.
If time increases with x3 then Distance will also increase with x3.
So 50(1/2) × 3 = 151(1/2) K.M.