document.write( "Question 251987: Q.1:-In a book with page numbers from 1 to 100, some pages are torn off. The sum of the numbers on the remaining pages is 4949. How many pages are torn off? \r
\n" ); document.write( "\n" ); document.write( "Q.2:- Let ABC be a triangle in which AB=AC and let I be its in-centre. suppose BC=AB+AI.find the angle BAC?\r
\n" ); document.write( "\n" ); document.write( "Q.3:-Show that there is no integer a such that a^2-3a-19 is divisible by 289?\r
\n" ); document.write( "\n" ); document.write( "Q.4:-Find the sum of all 3-digit natural numbers which contain at least one odd digit and at least one even digit?
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Algebra.Com's Answer #183761 by richwmiller(17219)\"\" \"About 
You can put this solution on YOUR website!
numbers from 1 to 100 add up to 50*101=5050
\n" ); document.write( "5050-4949=101
\n" ); document.write( "So anywhere from 2 [pages 50 and 51}
\n" ); document.write( "It doesn't say they are consecutive pages torn off.\r
\n" ); document.write( "\n" ); document.write( "3 pages-24,25,52
\n" ); document.write( "4 pages-12,13,24,52
\n" ); document.write( "etc\r
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