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Petersonscom verbal problems involving fractions 43 2

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Unformatted text preview: 8. The Dobkin family budgets its monthly income 1 1 1 for food, for rent, for 3 4 10 1 clothing, and for savings. What part is left 5 as follows: for other expenses? (A) (B) (C) (D) (E) 3 7 1 6 7 60 2 15 3 20 www.petersons.com Verbal Problems Involving Fractions 43 2. FINDING FRACTIONS OF FRACTIONS Many problems require you to find a fractional part of a fractional part, such as ing the fractions together, Example: 1 1 of the employees of Mr. Brown’s firm earn over $20,000 per year. of the remainder earn 4 2 3 2 1 of is . 4 3 2 3 2 of . This involves multiply5 3 between $15,000 and $20,000. What part of the employees earns less than $15,000 per year? Solution: 1 1 3 3 13 5 of or earn between $15,000 and $20,000. That accounts for + or earn over $20,000. 4 2 4 8 48 8 3 of all employees. Therefore, the other earn less than $15,000. 8 Example: A full bottle of isopropyl alcohol is left open in the school laboratory. If evaporates in the first 12 hours and of the bottle is full at the end of 24 hours? Solution: 1 2 2 4 evaporates during the first 12 hours. of or evaporates during the second 12 hours. This 3 3 3 9 7 2 accounts for of the isopropyl alcohol. Therefore, of the bottle is still full. 9 9 2 of the remainder evaporates in the second 12 hours, what part 3 1 of the isopropyl alcohol 3 Exercise 2 Work out each problem. Circle the letter that appears before your answer. 1. Mrs. Natt spent 2 of the family income one 3 2 of the suits in his shop before 5 2. After selling year and divided the remainder between 4 different savings banks. If she put $2000 into each bank, what was the amount of her family income that year? (A) (B) (C) (D) (E) $8000 $16,000 $24,000 $32,000 $6000 Christmas, Mr. Gross sold the remainder of the suits at the same price per suit after Christmas for $4500. What was the income from the entire stock? (A) (B) (C) (D) (E) $3000 $7500 $1800 $2700 $8000 www.petersons.com 44 Chapter 3 3. Of this year’s graduating seniors at South High, 9 4 will be going to college....
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This note was uploaded on 08/15/2010 for the course MATH a4d4 taught by Professor Colon during the Spring '10 term at Embry-Riddle FL/AZ.

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