Ratio Problems( Week 27 Evaluation) 1. Anne has a certain number of marbles. She gives one-half of them to Nancy and then 10 to Susan. She then gives one-third of her remaining marbles plus 10 to Mary and is left with no marbles. How many marbles did Anne have at the beginning? 2. A gift bag costs $20 in store A and the same gift bag is on sale in store B for $16. How many gift bags can be bought in store B with the amount of money needed to buy 12 same gift bags in store A? 3. What part of a day elapsed from 9:25 A.M. to 6:25 P.M. of the same day? 4. One cubic foot of a certain material weighs 19 pounds and costs $69.12 per pound. A cubic foot equals to 1728 cubic inches. At the same rate, what is the cost of 605 cubic inches of the same material? 5. If of a number is 48, what is of the number? 6. Rene had a total of d dollars. He lent of his money to a friend and then spent of the money that he had left for books. In the end, how many dollars did Rene still have at hand in terms of d? 7. If of of a number is 24, what is of the same number? 8. After a number is increased by of its value, the result is 24. What is the number? 9. In a certain solution of water and alcohol, the ratio by volume of the amount of water to the amount of alcohol is 5 to 6. If the volume of the alcohol is 66 cubic inches, what is the volume of the water (in cubic inches)? |