Question

THE CLASS MARK OF A CLASS IS 10-AND ITS CLASS
WIDTH IS 6. THE LOWER LIMIT OF CLASS IS:​

Answer 1

Answer:

7

Step-by-step explanation:

let x and y be the lower and upper limit

so, (X+y)/2 = 10

x+y = 20

x-y= 6

y = x-6

2x-6 = 20

2x = 14

X= 7