Math (PS) If the power of an engine grows by 10% when the number of its cylinders is increased by one, which of the following is closest to the ratio of the power of a 9-cylinder engine to that of a 12-cylinder engine? (A) 0.69 (B) 0.71 (C) 0.72 (D)...

Math (PS) There are 3 red chips and 2 blue chips. When arranged in a row, they form a certain color pattern, for example RBRRB. How many color patterns are possible? (A) 10 (B) 12 (C) 24 (D) 60 (E) 100 OA and Explanation GMAT Daily Deals Manhattan GMAT is releasing 2 new books:...

Math (PS) If the farmer sells 75 of his chickens, his stock of feed will last for 20 more days than planned, but if he buys 100 more chickens, he will run out of feed 15 days earlier than planned. If no chickens are sold or...

Math (PS) If , what is the last digit of ? (A) 8 (B) 6 (C) 4 (D) 2 (E) 1 OA and Explanation GMAT Daily Deals Manhattan GMAT is releasing 2 new books: Foundations of GMAT Verbal and Advanced Quant. Pre-order your copy today! Advanced Quant and Foundations of Verbal To welcome...

Math (PS) A furniture manufacturer has two machines, but only one can be used at a time. Machine A is utilized during the first shift and Machine B during the second shift, while both work half of the third shift. If Machine A can do the...

Math (PS) The square of = ? (A) (B) (C) (D) (E) OA and Explanation GMAT Daily Deals Check out Knewton’s brand new On Demand Course. Only $349 – a savings of $101! Use promo code KNEWTONBEST-GMAT-CLUB-OD. Sign up now! Purchase Amerasia Consulting’s Full School Engagement to...

Math (PS) What is the area of a triangle with the following vertices , , and ? (A) 3 (B) 4 (C) 5 (D) 6 (E) 7 OA and Explanation GMAT Daily Deals View Kaplan’s new Course page to learn more about their products and discounts. Save up to $255 on...

Math (PS) Two cities, Kensington MD and Reston VA are 30 km apart. From both of these cities, simultaneously, two hikers start their journeys towards each other. They are walking at a constant speed of 5 km/hour each. Simultaneously, a fly leaves the city of Kensington....

Math (PS) The probability that a visitor at the mall buys a pack of candy is 30%. If three visitors come to the mall today, what is the probability that exactly two will buy a pack of candy? (A) 0.343 (B) 0.147 (C) 0.189 (D) 0.063 (E) 0.027 OA and Explanation GMAT Daily...

Manhattan GMAT is readying two new strategy supplements to expand their existing catalog of prep materials: Foundations of GMAT Verbal and Advanced GMAT Quant. Inspired by the success of Manhattan GMAT’s Foundations of GMAT Math strategy supplement, these two new books are intended to...