Percentages: Basic Concepts Exercise
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... Comparison of Percentages Exercise
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... Successive Percentage Change Exercise
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%...
Percentages: Product Constancy Ratio
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... Percentages: Product Constancy Ratio Exercise
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)}...
