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Ratio And Proportion Gre Questions |
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Re: ratio and proportion gre questions
Ratios and proportions are favourites of most standardized tests, and the GRE Math section is no exception. Once you learn the basics, you’ll learn that ratio and proportions problems require only simple algebra. A ratio is a kind of fraction that measures two or more quantities in a group. Here is Ratio And Proportion Gre Questions: GRE Ratio Practice Problem 1. Tom is selling apples and oranges. The ratio of apples to oranges in his cart is 3:2. If he has 12 oranges, how many apples does he have? (A) 2 (B) 3 (C) 8 (D) 18 (E) 30 2. Tom is selling apples and oranges. The ratio of apples to oranges in his cart is 3:2. If he has a total of 30 fruits, how many apples does he have? (A) 2 (B) 3 (C) 12 (D) 18 (E) 30 Practice Questions 1. A jewel necklace contains only emeralds, rubies, and diamonds. If the ratio of emeralds to diamonds is 2:7 and the ratio of diamonds to rubies is 3:2, then which of the following could not be the number of jewels on the necklace? (A) 41 (B) 81 (C) 82 (D) 123 (E) 205 2. A tiara is studded with a mixture of gems. The ratio of sapphires to emeralds is 3:1. If 6 emeralds are added, the tiara will contain an equal number of sapphires and emeralds. How many emeralds must be added to the original tiara so that the ratio between emeralds and sapphires is 3:1? (A) 9 (B) 12 (C) 18 (D) 24 (E) 27 3. An imperial scepter is mounted with diamonds, rubies, emeralds, and sapphires in the ratio of w : x : y : z. If w, x, y, and z are distinct single digit primes, then how many gems could be on the imperial scepter if it only contains the gems listed above? (A) 19 (B) 58 (C) 85 (D) 97 (E) Cannot be determined from the information provided above. 4. (Okay – enough with the jewels!) Marty has a coin collection, which consists of only New World and Old World coins, in a ratio of 3:1. Marty’s friend Kyle swaps 28 of his Old World Coins for 28 of Martin’s New World coins. If Marty now has as many Old World coins as he does New World coins, how many coins did Marty originally have in his collection? (A) 28 (B) 84 (C) 112 (D) 130 (E) 390 5. (Okay, back to jewel necklaces). Marty has a necklace that contains a total of 36 rhinestones, zirconium, and obsidian “gems.” If the ratio of obsidian to zirconium is 2:5, then which of the following could not be the number of rhinestones in Marty’s necklace? (A) 8 (B) 12 (C) 15 (D) 22 (E) 29 Answers: 1. B 2. D 3. C 4. C 5. B |
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