Question

Ex.3. Two trains started at the same time, one from A to B and the other from B to A. If they arrived at B and A respectively 4 hours and 9 hours after they passed each other, the ratio of the speed of the two trains was (1) 2:1 (2) 3:2 (3) 4:3 (4) 5:4

11th - 12th Class

Maths

Solution

126

4.0 (1 ratings)

Sol. (2) Required ratio of the speed of two trains = ( frac{sqrt{9}}{sqrt{4}}=frac{3}{2} ) or 3: 2