Anumber is multiplied by 4 then 7 is added to the product after subtracting 3 the result is 8. what is the number

1

Step-by-step explanation:

x*4+7-3=8

4x+7-3=8

4x+4=8

4x=4

x=1

the number is 1.

1 * 4 = 4

4 - 3 = 1

7 + 1 = 8

the correct answer is 5

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.