 
 <translate> Q: Two trains are moving at 65 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) 6 2/3 sec
(B) 7 1/7 sec
(C) 7 2/2 sec
(D) 8 1/2 sec
(E) 7 1/9 sec
A: (A)
Explain how we arrive at this answer:  <ibo> Ajụjụ: Ụgbọ oloko abụọ na-agba ọsọ 65 kmph na 70 kmph n'ụzọ dị iche. Ogologo ha bụ 150 m na 100 m. Oge ha ga-ewe iji gafee ibe ha kpamkpam bụ? Nhọrọ: (A) 6 2/3 sec (B) 7 1/7 nke abụọ (C) 7 2/2 sec (D) 8 1/2 sec (E) 7 1/9 nke abụọ A: (A) Kọwaa otú anyị si ruo ná nkwubi okwu a: 