document.write( "Question 30541: Karen asks her teacher, Miss Sharp, how old she is.
\n" ); document.write( "Miss Sharp replies that if you double her age, add 7 and then divide by 3, you get 21.
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Miss Sharp replies that if you double her age, add 7 and then divide by 3, you get 21.
\n" ); document.write( "Let Miss Sharp's age b A yrs
\n" ); document.write( "Double her age,add 7 and then divide by 3,then you get 21
\n" ); document.write( "That is (2A + 7)/3 = 21
\n" ); document.write( "Multiplying by 3
\n" ); document.write( "(2A+7) = 21X3
\n" ); document.write( "2A +7 =63
\n" ); document.write( "2A =63-7
\n" ); document.write( "2A = 56
\n" ); document.write( "A = 56/2 = 28
\n" ); document.write( "Answer: Miss Sharp's age is 28 yrs\r
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