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: Choose the correct choice from the following choices.
A) 2:3 B) 4:3 C) 7:3 D) 9:3 E) 4:2
Let us name the trains as A and B. Then,   (A's speed) : (4:3's speed) = b : a = 16 : 9 = 4 : 3.
<result>B</result>
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: