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 answers: A) 2 : 3 B) 4 : 3 C) 6 : 7 D) 9 : 16 E) None
Solution   Let us name the trains   as A and 4 : 3.	= (A'S speed) : (4 : 3's speed)   =√b : √a   = √16 : √9   = 4 : 3   Answer 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