31.Two, trains, one from Howrah to Patna and the other from Patna to Howrah, start simultaneously. After they meet, the trains reach their destinations after 9 hours and 16 hours respectively. The ratio of their speeds is:
A.2 : 3
B.4 : 3
C.6 : 7
D.9 : 16
Aptitude :: Problems on Trains
Exercise :: Problems on Trains – General Questions