Q.

At a certain speed, a car takes 4 hours to complete the journey of 252 km. Time taken by the car to cover the journey, if the speed of the car is decreased by 9 km / hour.

see full answer

Start JEE / NEET / Foundation preparation at rupees 99/day !!

21% of IItians & 23% of AIIMS delhi doctors are from Sri Chaitanya institute !!
An Intiative by Sri Chaitanya

a

4 hours 10 minutes

b

3 hours 40 minutes

c

4 hours 40 minutes

d

5 hours 15 minutes

answer is A.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

Speed of the car =dt=2524=63km/h  

Speed was decreased 9Km/h then speed= 63-9=54Km/h

time=ds=25254= 4 hours 40 minutes

Watch 3-min video & get full concept clarity

tricks from toppers of Infinity Learn

score_test_img

Get Expert Academic Guidance – Connect with a Counselor Today!

whats app icon