Question

If we expect to get a number less than 3 in eighty times spinning an eight-part spinner numbered 1 to 8, how many times would we have spun?

Answer 1

Answer:

u have eight numbers in total. only two( 1 and 2 are less than 3. you do not include 3) of them will bring success.

let x=the total number of time u need to spin.

(2/8)x=80 multiply by 8

2x=80*8

2x=640 divided by 2

x=640/2

x=320