Sharpen Your Math Skills
Whether you're thinking of a career as an accountant or just trying to balance your checkbook, you face math in some way, shape or form every single day.
Not only are strong math skills important to doing well in school, they are also critical to your success in everyday life. You have to pay bills; plan for a financially secure future; pay taxes; and you probably split the cable bill with your roommate.
A Language All Its Own
Think of mathematics as its own language. Just like the language of words, grammar, and punctuation, the language of math is precise. It helps to know as much of the rules, vocabulary, and methods as possible to make informed decisions about problems on a test or in day-to-day life.
So the main lesson here is to look at the big picture. Look at how individual parts of a problem relate to a whole. You'll gain a better understanding of the concepts behind the numbers. And in the process, you'll gain a better understanding of the world around you.
Practice Questions
Try out the practice problems below and see how you do. Each represents some important math concepts that are critical to success at school, on the job, and in life. The answers are below.
1. In May, Gina sold 40 percent more magazine subscriptions than she had in April. In June, she sold 20 percent more subscriptions than she had in May. The number of magazine subscriptions Gina sold was what percent greater in June than in April?
(A) 60
(B) 64
(C) 68
(D) 72
(E) 80
2. Directions: Answer (A) if the quantity in Column A is greater; (B) if the quantity in Column B is greater; (C) if the two quantities are equal, or (D) if the relationship cannot be determined from the information given
Square A has sides of length x and square B has sides of twice this length.
Column A
Area of square A
Column B
Half the area of square B
Answers and Explanations
1. The correct answer is (C). Since we are not given a number for how many subscriptions Gina sold in April, let's pick a number. Let's pick 100. When you have a percent problem and numbers are not provided, you should always pick 100 because it is easy to work with.
In April, let's say Gina sold 100 magazines. We are told that in May she sold 40 percent more magazine subscriptions than she had in April so the number she sold in May is 100 plus 40 percent of 100, or 140. In June, Gina sold 20 percent more subscriptions than she did in May. Well, in May she sold 140 subscriptions and 20 percent of 140 is 20 percent times 140 or 28.
Therefore, in June, Gina sold 140 plus 28 subscriptions, or 168 subscriptions. The percent that the number of magazine subscriptions sold in June, 168, is greater than the number sold in April, 100, is 68 percent, answer choice (C).
2. The correct answer is (B). In this question, we are given that one square, A, has sides of length x and a second square, B, has sides of twice this length (or 2x), and we are asked to compare the area of A to one half the area of B. The first thing you should do is draw a diagram. (You should draw a diagram when you are not provided with one or when you are given one that is not drawn to scale.) If you draw the squares somewhat carefully, the answer becomes obvious.
Figured out mathematically, the area of a square is the side squared. Column A will, then, yield a square with area x². Column B will yield a square with area 4x². x² compared to 2x² gives us an answer choice of (B) because 2x² is greater. You could have picked numbers for the sides of the squares and would have still come out with Column B being greater.
2021年英国商科硕士录取看重GMAT成绩吗?这11所院校非常看重!
GMAT考试是美国商科的应试考试,可以判断孩子是否具有商科的数学能力、逻辑思维能力以及反应能力,GMAT成绩是申请美国商科必不可少的条件,那么,就有学生会问“2021年英国商科硕士录取看重GMAT成绩吗
英国哪些专业要gmat么,这些留学必备小知识你知道么
童鞋们都知道,申请留学是需要gmat的,随着申请英国大学的竞争难度逐年提升,英国哪些专业要gmat呢,这些留学必备小知识你知道么?在不确定的现在,给你可确定的未来!
Kaplan International English - Melbourne雅思课程是怎样的? 看文本文就知道了
很多中国留学的学生要参加雅思考试,而有些学生为了让自己的成绩满足报考院校的录取要求。申请去Kaplan International English - Melbourne学习雅思课程。
澳洲八大商科研究生申请必须要GMAT成绩吗?与雅思托福备考先后如何选择?
GMAT一直被成为是经企管理研究生入学考试,目前已成为一个跨越文化、语言、性别、年龄的预测考生能力的有利工具,它主要考察申请人的语言能力和数学能力,还测试其头脑反应、逻辑思维和解决实际问题的能力,以此GMAT
帝国理工学院哪些专业要求提供MAT考试成绩?
这里我们要说的MAT考试,并不是平常见到的GMAT考试,二者无任何联系。MAT考试,是由牛津大学命题的一门考试,主要针对数学和计算机科学相关专业,考察学生基础实力和培养潜力。
华威大学哪些商科专业不需要GMAT成绩?三门就业超高专业推荐!
GMAT成绩?