Click to Chat
1800-1023-196
+91-120-4616500
CART 0
Use Coupon: CART20 and get 20% off on all online Study Material
Welcome User
OR
LOGIN
Complete Your Registration (Step 2 of 2 )
A car covers half of the a distance with speed 60km.hr. and rest of the half with speed 30km/hr. The average speed of the car is -
Let the distance be x , therefore total distance=2xSpeed1=60km/hTime taken for 1st half of the journey=(x/60)hrTime taken for finalhalf of journey=(x/30)hrTotal time=(x/60)+(x/30)=(x+2x)/60=3x/60Avg speed of the car =total distance/total time taken=2x/3x/60=2x*60/3x=40km/h (answer)
Post Question
Dear , Preparing for entrance exams? Register yourself for the free demo class from askiitians.
points won -