Question

2 trains with the speed of 35km and 28km per hour respectively, starting at the same time in opposite direction between 2stationso a an db , 35km apart. Find when and where the trains will meet.

Answer 1

t =t1+t2
d1/s1 + d2 /s2
but given d1=d2
35/35+35/28
1+5/4
9/4 =2.25 km/hr
if in sec then 9/4×5/18 0.62 sec