How many positive integers less than 500 can be formed using the numbers 1, 2, 3 and 5 for digits, each digit being used only once?
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
Single digit number = 4 Double digit number = 4××3 = 12 Three digit numbers = 3××3××2= 18 (∵∵ If Hundred's place is 5, then the number is greater than 500) Total = 34.