Question

if you have the digits 2,4,6,7,8,9 and the digits cant be repeated, find the number of possible 4 digit numbers greater than 7000

Answer 1

its supposed to be using factorials. like the first part of the question was how many 5 digit even numbers. so the answer would be 5! X 4 which is 480

Answer 2

how many 4 digit numbers are there greater than 7000?

Answer 3

there are 2999

Answer 4

right

Answer 5

9999 - 7001 + 1 = 2999

Answer 6

in the thousandth place , we have only options 7,8 or 9 , because it has to be bigger than 7000

Answer 7

yep

Answer 8

then in the hundredth place we have 5 choices we can make , since we picked one in the thousandth place