All the multiples of 10.
10 20 30 40 50 60 70 80 90 100
Multiples of 2*5 = 10
I presume that it means you have a choice of several charts and one of them may have 3 prime numbers that are shaded. There may be more than one such chart to make your task easier or they may not be any and it is a trick question!
well it is a hundred precent model so if it has 4 shaded in the hundred model it will be 4%
It would be a full grid(100 all shaded) and six more on another hundred-grid.
Alt two! Use the numbers on the side of the keypad, not the top. ☻
It depends on what the shaded and non-shaded parts look like!
3/10 are shaded.
2/3 is not shaded; 2/3 is about 66.667%.