Question

A car moves 30km in 0.5hr and next 30km in2/3hr.calculate it's average speed? ​

Answer 1

Answer:

car moves 30 km in 0.5hr and next 30 km in 2/3 hr

total distance travelled = 30+30=60

total time = 0.5+ 2/3 = 0.5+0.66= 1.16

average speed= 60/1.16=51.72 km/hr

Answer 2

$\huge\boxed{\fcolorbox{cyan}{red}{Ms~COWARD}}$

Total distance travelled ( d ) = 30 + 30 = 60 km

Total time taken ( t ) = 0.5 + 2/3

=> 5/10 + 2/3

=> 15 + 20 / 30

=> 35 / 30

=> 7/6

=> 1.16

Average speed = distance / time

===> 60 / 1.16

===> 51.72 km/hr .