New Posts For Thread: Maths puzzle ...https://community.betfair.com/chit_chat/go/thread/view/94038/23429942/maths-puzzle....probably unique - my brother thought of it the other day How many pallindromic numbers are there between 1 and a million ? Its not that hard when you get your head round it ....Then the answer would be easy Goring.https://community.betfair.com/chit_chat/go/thread/view/94038/23429942/maths-puzzle?post_id=418064098#418064098Then the answer would be easy Goring.Mon, 28 Dec 2009 04:57:59 -0600What about 1.1 and 2.2 and 3.3....https://community.betfair.com/chit_chat/go/thread/view/94038/23429942/maths-puzzle?post_id=418064094#418064094What about 1.1 and 2.2 and 3.3....Mon, 28 Dec 2009 04:57:11 -0600I went a bt of a long way round. It was just 9+9+90+90+900+900 in the end.https://community.betfair.com/chit_chat/go/thread/view/94038/23429942/maths-puzzle?post_id=418064086#418064086I went a bt of a long way round. It was just 9+9+90+90+900+900 in the end.Mon, 28 Dec 2009 04:40:11 -0600well done positively :)https://community.betfair.com/chit_chat/go/thread/view/94038/23429942/maths-puzzle?post_id=418064082#418064082well done positively :)Mon, 28 Dec 2009 04:37:52 -0600Region no of palindromes:0-9 910-99 9100-999 901000-9999 9010000-99999 900100000-999999 900Total = 1998imohttps://community.betfair.com/chit_chat/go/thread/view/94038/23429942/maths-puzzle?post_id=418064078#418064078Region no of palindromes:0-9 910-99 9100-999 901000-9999 9010000-99999 900100000-999999 900Total = 1998imoMon, 28 Dec 2009 04:30:51 -0600Is the answer 1998?https://community.betfair.com/chit_chat/go/thread/view/94038/23429942/maths-puzzle?post_id=418064074#418064074Is the answer 1998?Mon, 28 Dec 2009 04:28:11 -0600so 100000 to 999999 all will be in the form nxxxxxn wheren = 1,2,3,4,5,6,7,8 or 9so how many palindroms of xxxx are there? when we have that we multiply by 9xxxx - can be:0000, 0110, ..... 0990 = 101001, 1111, .... 1991 = 10...9009, 9119, ....https://community.betfair.com/chit_chat/go/thread/view/94038/23429942/maths-puzzle?post_id=418064070#418064070so 100000 to 999999 all will be in the form nxxxxxn wheren = 1,2,3,4,5,6,7,8 or 9so how many palindroms of xxxx are there? when we have that we multiply by 9xxxx - can be:0000, 0110, ..... 0990 = 101001, 1111, .... 1991 = 10...9009, 9119, ....Mon, 28 Dec 2009 04:27:50 -0600one outhttps://community.betfair.com/chit_chat/go/thread/view/94038/23429942/maths-puzzle?post_id=418064066#418064066one outMon, 28 Dec 2009 04:24:42 -06001, 2, 3, 4, 5, 6, 7, 8, 9 = 911, 22, 33, 44, 55, 66, 77, 88, 99, = 9 (total = 18)101, 111, 121, 131, 141, 151,161, 171, 181, 191 = 10 (+80) (total = 108 (1000))1001, 1111, 1221, 1331, 1441, 1551 etc = 10 (+80) (total = 198 (10000))10001, 10101, 1https://community.betfair.com/chit_chat/go/thread/view/94038/23429942/maths-puzzle?post_id=418064062#4180640621, 2, 3, 4, 5, 6, 7, 8, 9 = 911, 22, 33, 44, 55, 66, 77, 88, 99, = 9 (total = 18)101, 111, 121, 131, 141, 151,161, 171, 181, 191 = 10 (+80) (total = 108 (1000))1001, 1111, 1221, 1331, 1441, 1551 etc = 10 (+80) (total = 198 (10000))10001, 10101, 1Mon, 28 Dec 2009 04:23:15 -060010,001https://community.betfair.com/chit_chat/go/thread/view/94038/23429942/maths-puzzle?post_id=418064058#41806405810,001Mon, 28 Dec 2009 04:21:57 -0600