document.write( "Question 1048028: (a) the ratio of mr paul's salary to mrs anna's salary is 3:4. if mrs anna draws a salary of Rs 28000, find mr. paul's salary.\r
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document.write( "(b) an amount of Rs210 is shared between roy and shireen so that ro gets 2/5 of shireen's share. how much does shireen get ?\r
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document.write( "(c) in a school of 540 pupils, there are 5 girls to every 4 boys. how many boys are there in that school ? \n" );
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Algebra.Com's Answer #837847 by greenestamps(13200)![]() ![]() You can put this solution on YOUR website! \n" ); document.write( "Set up all three problems the same way, using the given ratios. \n" ); document.write( "(a) the ratio of mr paul's salary to mrs anna's salary is 3:4. if mrs anna draws a salary of Rs 28000, find mr. paul's salary. \n" ); document.write( "The ratio 3:4 is given in the statement of the problem. Use it like this to set up the problem: \n" ); document.write( "Let 3x = Mr Paul's salary \n" ); document.write( "Let 4x = Mrs Anna's salary \n" ); document.write( "Mrs Anna's salary is Rs 28000: \n" ); document.write( "4x = 28000 \n" ); document.write( "... \n" ); document.write( "(b) an amount of Rs210 is shared between roy and shireen so that ro gets 2/5 of shireen's share. how much does shireen get ? \n" ); document.write( "Here you have to do some interpretation of the given information to find that the ratio of the two amounts is 2:5. Then... \n" ); document.write( "Let 2x = Roy's amount \n" ); document.write( "Let 5x = Shireen's amount \n" ); document.write( "The total is Rs 210: \n" ); document.write( "2x+5x=210 \n" ); document.write( "... \n" ); document.write( "(c) in a school of 540 pupils, there are 5 girls to every 4 boys. how many boys are there in that school ? \n" ); document.write( "Only a little bit of work is needed to see that here the ratio is 5:4. So... \n" ); document.write( "Let 5x = number of girls \n" ); document.write( "Let 4x = number of boys \n" ); document.write( "The total number of pupils is 540: \n" ); document.write( "5x+4x = 540 \n" ); document.write( "... \n" ); document.write( "Finishing each of the problems is easy, using basic algebra. For example, for the first problem.... \n" ); document.write( "4x = 28000 \n" ); document.write( "x = 28000/4 = 7000 \n" ); document.write( "ANSWER: Mr Paul's salary is 3x = 3(Rs 7000) = Rs 21000 \n" ); document.write( "You can finish the other two problems. \n" ); document.write( " \n" ); document.write( " |