Question

A motorcycle covers a distance of 72 km at a speed of 36 km/hr and a distance of 135 km/hr at a speed of 45 km/hr find the average speed of a motorcycle​

Answer 1

Answer:

Correct option is

D

18 km/hr

Total time taken =1545hrs+2550hrs+1525hrs=3hrs+2hrs+35hrs=320hrs

∴ Average speed of the car =30×2045+50+25 

                                                =20120×3km/hr=18km/hr.

Answer 2

Answer:

calculate the mode from the following data -

value frequency

0-10 2

10-20 4

20-30 12

30-40 8

40-50 10

please send right answers