Home PDF Store Exams G.K. Aptitude Reasoning English Computer Biology Privacy About Contact

Two trains 140 m and 160 m long run at the speed of 60 km/hr and 40 km/hr respectively in opposite directions on parallel tracks. The time (in seconds) which they take to cross each other, is-

A. 9

B. 9.6

C. 10

D. 10.8

Study and Earn Android App

Share this question with your friends

Correct Answer : D.

R e l a t i v e s p e e d = (60 + 40) k m / h r = (100 x \frac{5}{18}) m / s e c = (\frac{250}{9}) m / s e c . D i s \tan c e c o v e r e d i n c r o s \sin g e a c h o t h e r = (140 + 160) m = 300 m . R e q u i r e d t i m e = (300 x \frac{9}{250}) s e c = \frac{54}{5} s e c = 10.8 s e c .

Comment

Also checkout

Algae MCQ Phylum - Aves (Birds) MCQ Periodic Classification of Elements MCQ Permutation MCQ Statement & Assumption MCQ Alchohols MCQ Skin Anatomy and Physiology MCQ General Biology Set 2 MCQ Articles MCQ Statutory Deductions MCQ Ethers MCQ Compounds with Functional Groups Containing MCQ