problems on train

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

Answer: Option B

Explanation:

 

Let us name the trains as A and B. Then,

(A’s speed) : (B’s speed) = b : a = 16 : 9 = 4 : 3.

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