An infinity. There is an infinity of numbers between any two numbers.
I you want whole numbers, there are 31.
50
40:64 = 50:80
-50
80%=80/100 80/100 x 50 questions = 40 correct answers. therefore 50 - 40 = 10 incorrect answers.
50 times.
50
Seven: 53,59,61,67,71,73,79.
80
prime numbers between 50 and 80 = 53,59,61,67 ,71,73,79
All even numbers between 50 and 80 are composite.
The prime numbers between 50 and 80 are 53, 59, 61, 67, 71, 73, and 79.
80
463
40:64 = 50:80
50 25,2 5,5,2 62 2,31 80 40,2 20,2,2 10,2,2,2 5,2,2,2,2
The Roman numerals for 50 to 80 are: 50 - L 60 - LX 70 - LXX 80 - LXXX
Seven: 10, 16, 20, 25, 40, 50, 80.