Atrain travelled a distance of 6,000km from lahore to karachi in 22 hours. and during travel from karachi to lahore the train got late due to engine failure and reached lahore in 28 hours. what is the average speed of train?
180 km/hr
200 km/hr
220 km/hr
240 km/hr

b

step-by-step explanation:

solution:

as, mean is defined as sum of all the observations divided by total number of observations.

and , median is mid value of the data whether arranged in ascending order or descending order.

consider, roadsters:

2,3,4,5,6,7,8,9

mean =

also, median= , because number of observations is even, so median is mean of two mid values.

now, coming to bandits

2,3,4,5,6

mean =  

median = 4, as number of observations is odd.

so, roadsters has greater median as well mean than bandits.

→option a is true about the repairs performed on 2 types of cars:

bandits have lower median and mean than roadsters.