For every 200 books Johnson sells, he earns $8. He will receive an addition of $20 for every 3000 books sold. How many books must he sell to earn $700?Solution1 group of 200 books --> $83000 books divided by 200 books --> 15 groups of 200 books15 groups of 200 books--> 15 x $8 + $20 commission= $120 + $20= $140To earn $700,$700 divided by $140 --> 5 groups of $1401 group of $140 --> 15 groups of 200 books5 groups of $140 --> 5 x 15 groups of 200 books =75 groups of 200 books75 groups of 200 books--> 75 x 200 books= 15 000 booksAnswer: 15 000 books
Tuesday, February 09, 2010
Ai Tong Sch 2009 P6 CA1 Math Paper 2 Q14
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