# Math 213 Exam

741 Words3 Pages
MTH-213 Comprehensive Exam NAME [pic] 1. Find the following sum: 3 + 9 + 15 + ... + 87 114 [pic] 2. Determine whether the following argument is valid. • Some TV shows are comedies. YES • All comedies are hits. NO • Therefore, some TV shows are hits. YES [pic] 3. Solve the problem: How many different amounts of money can you pay if you use two coins including only nickels, dimes, and quarters? It would only be six different amounts. The amounts would be 10 cents using two nickels, 15 cents using a nickel and a dime, 20 cents using two dimes, 30 cents using a nickel and a quarter, 35 cents using a dime and a quarter, and 50 cents using two quarters. [pic] 4. Solve the problem: A long distance phone call costs \$1.30 for the first minute plus \$0.20 each additional minute. What is the cost of a 6-minute call? 0.20 * 5 = 1.00 1.00 + 1.30 = \$2.30 [pic] 5. Solve the problem: Maggie bought 111 plants from the nursery, and she wants to plant 5 rows, each having 23 plants. However, after she starts placing the plants, she finds that she does not have enough. By how many did she fall short? She fell 4 short. 23 * 5 = 115 115 - 111= 4 [pic] 6. Evaluate: (-34 - -25) ÷ 3 (-34 - -25) ÷ 3 -9 ÷ 3 -3 [pic] 7. Use sets to solve the problem: Results of a survey of fifty students indicate that 30 like red jellybeans, 29 like green jellybeans, and 17 like both red and green jelly beans. How many of the students surveyed like neither red nor green jellybeans? 30 like red and of those, 17 also like green(R+G), meaning that 13 don't like green (R) 29 like green and of those, 17 also like red(R+G), meaning that 12 don't like red(G) Assuming that R and G are the only colors, that leaves you those that like NEITHER red nor green. We have 50 students