 
 <translate> Two trains are moving at 85 kmph and 70 kmph in opposite directions. Their lengths are 150 m and 100 m respectively. The time they will take to pass each other completely is?
Options:
(A) 5 25/31 sec
(B) 7 1/17 sec
(C) 7 2/2 sec
(D) 8 1/2 sec
(E) 7 1/9 sec OK. Let's think. Some random thoughts first: <hau> Jiragen kasa biyu suna tafiya da saurin kilomita 85 a kowace awa da kuma kilomita 70 a kowace awa a bangarorin da suka saba. Tsawon su ya kai mita 150 da 100 m. Lokacin da za su dauka su wuce juna gaba daya shi ne? Zaɓuɓɓuka: (A) 5 25/31 na biyu (B) 7 1/17 na biyu (C) 7 2/2 na biyu (D) 8 1/2 na biyu (E) 7 1/9 na biyu Bari mu yi tunani. Wasu tunani bazuwar farko: 