Two trains of equal lengths takes 10 seconds and 15 seconds respectiv…

Question

Two trains of equal lengths takes 10 seconds and 15 seconds respectively to cross a telegraph post. If the length of each train be 120 miters, in what time ( in seconds) will they cross each other traveling in opposite…

Accepted Answer

Option B. 12. Answer & Solution Answer: Option B Solution: & Speed of the train & = ( 12010 ) m/sec & = 12 m/sec & Speed of the second train & = ( 12015 ) m/sec & = 8 m/sec & Relative speed & = (12 + 8)m/sec & = 20 m/sec & Required time & = ( 120 + 120 )20\, & = 12\,

Two trains of equal lengths takes 10 seconds and 15 seconds respectively to cross a telegraph post. If the length of each train be 120 miters, in what time ( in seconds) will they cross each other traveling in opposite direction?

Solution