by Wordpandit | Sep 22, 2016 | Arithmetic Concepts |
Welcome to this lesson on Percentages. Percentage is one of the most important parts of Arithmetic. In fact, it is one of the foundation topics for Arithmetic and this makes it vital to explore the topic in an in-depth manner. We begin with the basics of Percentages...
by Wordpandit | Sep 20, 2016 | Arithmetic Concepts |
Question 1: When 75 is added to 75% of a number, the answer is the number. Find 40% of that number. (a) 100 (b) 80 (c) 120 (d) 160 Answers and Explanations The right answer is option c Let the number be p. 75% of p + 75 = p ⇒(75/100)p + 75 = p ⇒ 75 = p –(75p/100) ⇒ 75...
by Wordpandit | Sep 20, 2016 | Arithmetic Concepts |
Question 1: p is six times as large as q. The percent that q is less than p, is Answers and Explanations Question 2: If the income of Ram is 12.5% more than that of Shyam, the income of Shyam is less than of Ram by Answers and Explanations Question 3: A’s income is...
by Wordpandit | Sep 20, 2016 | Arithmetic Concepts |
Question 1: The strength of a school increases and decreases in every alternate year by 10%. It started with increase in 2000. Then, the strength of the school in 2003 as compared to that in 2000 was (a) increased by 8.9% (b) decreased by 8.9% (c) increased by 9.8%...
by Wordpandit | Sep 20, 2016 | Arithmetic Concepts |
In this article, we deal with topic of Product Constancy Ratio. This is essentially an application of percentages and can be quite useful while solving problems. What is the Product Constancy Ratio? In this concept, we essentially refer to the practice wherein two or...
by Wordpandit | Sep 20, 2016 | Arithmetic Concepts |
Question 1: If the price of sugar is raised by 25%, find by how much percent a householder must reduce his consumption of sugar so as not to increase his expenditure ? (a) 10% (b) 20% (c) 18% (d) 25% Answers and Explanations Answers: (b) Percent decrease = {a/(100+a)}...
