Find the sum of all integars between 1 and 100 that are not multiples of 6. killer.
hatty Banned Joined Dec 14, 2003 Messages 1,169 Location I am the one Mar 24, 2004 #1 Find the sum of all integars between 1 and 100 that are not multiples of 6. killer.
E Estel Tutor Joined Nov 12, 2003 Messages 1,261 Gender Male HSC 2005 Mar 24, 2004 #2 Sum of all integers between 1 and 100 is (n(a+l))/2 =99(100)/2 =4950 Sum of all integers that are multiples of 6 ie 6,12,18... 96 =16(102)/2 =816 Therefore answer is 4950-816 =4134 Last edited: Mar 24, 2004
Sum of all integers between 1 and 100 is (n(a+l))/2 =99(100)/2 =4950 Sum of all integers that are multiples of 6 ie 6,12,18... 96 =16(102)/2 =816 Therefore answer is 4950-816 =4134
