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

A man on tour travels first 160 km at 64 km/hr and the next 160 km at 80 km/hr. The average speed for the first 320 km of the tour is:

A. 35.55 km/hr

B. 36 km/hr

C. 71.11 km/hr

D. 71 km/hr

Study and Earn Android App

Share this question with your friends

Correct Answer : C.

T o t a l t i m e t a k e n = (\frac{160}{64} + \frac{160}{80}) h r s . = \frac{9}{2} h r s .

∴ A v e r a g e s p e e d = 320 x \frac{2}{9} k m / h r = 71.11 k m / h r .

Comment

Also checkout

Automobile Engineering MCQ Additional Chemistry (Inorganic) MCQ Computer Fundamental MCQ Clock MCQ Chain Rule MCQ Rotational Motion MCQ XML Markup MCQ Male reproduction and infertility MCQ Machine Input Mi-set 2 MCQ Digital Electronics MCQ Visual Basic MCQ Electronics MCQ