Math, asked by abhishekhanchate2, 5 months ago

एक कार ने 8 घंटे में एक निश्चित यात्रा पूरी की। इसने आधी दूरी 40 किमी प्रति
घंटा की गति से और बाकी की दूरी 60 किमी प्रति घंटा की गति से तय की तो
संपूर्ण यात्रा की दूरी कितनी होगी :
A car completed a certain journey in 8 hours. It covers half the
distance at 40 km per hour and the rest at 60 km per hour. The length
of the journey is
a) 350 किमी km
b) 420 किमी km
c) 384 किमी km
d) 414 किमी km​

Answers

Answered by rishabh994
0

Answer:

Answer is C.

Let the total journey be x km.

 \frac{x}{2}  \times  \frac{1}{40}  +  \frac{x}{2}  \times  \frac{1}{60} = 8

 \frac{x}{80}  +  \frac{x}{120}  = 8

=> 3x + 2x = 1920

=> 5x = 1920

=> x = 384 km

Hence, The length of the journey is 384 km.

hope you understand it

thank you

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