Study with the several resources on Docsity
Earn points by helping other students or get them with a premium plan
Prepare for your exams
Study with the several resources on Docsity
Earn points to download
Earn points by helping other students or get them with a premium plan
A variety of mathematical problems and their solutions, including finding positive numbers, working with whole numbers and exponents, solving right triangle problems, calculating areas and circumferences of circles, and analyzing ratios, percentages, and statistics. A comprehensive set of practice problems and answers, making it a valuable resource for students and learners looking to improve their mathematical skills and problem-solving abilities. The wide range of topics covered, from basic arithmetic to more advanced concepts, makes this document suitable for a diverse audience, from high school students to university-level mathematics courses.
Typology: Exams
1 / 14
This page cannot be seen from the preview
Don't miss anything!
D. 1000 - answer โ โ B A ladder of a certain fixed length leans against a wall forming a 60แต angle between the ground and the ladder. If the bottom of the ladder is 10 feet away from the wall, how long is the ladder? A. 20 feet B. 10 feet C. 5 feet D. 1.54 feet - answer โ โ A An angle is equal to one fourth of its supplement. What would be the measure of that angle? A. 18 B. 36 C. 45 D. 72 - answer โ โ B The complement of an angle exceeds the angle by 60แต. Then the angle would be? A. 30 B. 15 C. 35 D. 90 - answer โ โ 15 If the difference between the two acute angles of a right triangle is 10แต, what will be the measure of the smaller one? A. 50 B. 40 C. 80 D. 70 - answer โ โ B
D. 2400$ - answer โ โ C In a college, the ratio of number of boys to girls is 8:5. If the number of boys is 160, what will be the total number of students in the college? A. 400 B. 220 C. 260 D. 416 - answer โ โ C In two successive years, the population of a town is decreased by 20% and 30%. What percent population is decreased after two years? A. 40% B. 56% C. 25% D. 44% - answer โ โ D If 200% of a number is 90, then what is the 80% of that number? A. 48 B. 36 C. 28 D. 44 - answer โ โ B If the radius of a sphere is increased by 10%, the surface area increases by? A. 20% B. 31% C. 21%
D. 100% - answer โ โ C A student has to score 15% marks to pass an exam. If he gets 80 marks and is failed by 70 marks, what are the maximum marks set for the exam? A. 150 B. 1500 C. 100 D. 1000 - answer โ โ D The average of five consecutive numbers is 30. What will be largest number of these? A. 30 B. 32 C. 33 D. 28 - answer โ โ B The mean of 100 observations was calculated as 40 but it turned out that one of the observations was misread as 83 but in reality it was 53. What will be the correct mean? A. 40. B. 39. C. 42. D. 40.5 - answer โ โ B Two dice are thrown simultaneously, what is the probability of getting a sum of 7 or 11? A. 1/ B. 1/ C. 2/ D. 4/9 - answer โ โ C
What is meant by "our star" in the passage given above? A. Our galaxy B. Earth C. Any other planet D. Sun - answer โ โ D Our star is a bubbling, charged ball of gas. It is anything but quiet. Sometimes solar flares are created when magnetic energy is released from the solar atmosphere. When this happens energized particles race towards Earth, arriving in minutes. How may these solar flares affect us? A. They can strike and burn us. B. Solar-flare particles cannot reach beyond Venus. C. They can produce high energy radiations that can affect us. D. They can produce gigantic particles releasing heat and could burn us. - answer โ โ C Our star is a bubbling, charged ball of gas. It is anything but quiet. Sometimes solar flares are created when magnetic energy is released from the solar atmosphere. When this happens energized particles race towards Earth, arriving in minutes. Why are we well-protected from the effects of solar flares on the surface of the Earth? A. Because of magnetic field of our galaxy B. Because of gravitational pull of earth C. Because of magnetic field of earth D. Because of magnetic field of sun - answer โ โ C
When animals, plants and other organisms die, they typically decay completely. But sometimes, when the conditions are just right, they're preserved as fossils. Several different physical and chemical processes create fossils, according to the New York State Geological Survey. Freezing, drying and encasement, such as in tar or resin, can create whole-body fossils that preserve bodily tissues. These fossils represent the organisms as they were when living, but they're very rare. Most organisms become fossils when they're changed through various other means. The heat and pressure from being buried in sediment can sometimes cause the tissues of organisms โ including plant leaves and the soft body parts of fish, reptiles and marine invertebrates โ to release hydrogen and oxygen, leaving behind a residue of carbon. What title could be best assigned to the above passage? A. How fossils are formed. B. How fossils are pres - answer โ โ B What can cause the release of hydrogen and oxygen from the tissues of organisms? A. freezing and drying of tissues B. heat and pressure C. burning D. oxidation - answer โ โ B Which of the following is an example of something that would not be included in the United States GDP? A. Government spending B. Money spent by an Italian company in the United States C. Profit from a factory owned by a United States citizen but operated in Brazil D. The salary of a non-US citizen working in the United States - answer โ โ C
Which economic system states that the wealth of a nation depends on its total available capital? A. Capitalism B. Mercantilism C. Communism D. Feudalism - answer โ โ B How do economists quantify the possibility that invested money could have been used for another purpose later on? A. Risk B. Cost of money C. Inflation D. Opportunity cost - answer โ โ D Why does the marginal cost of most manufactured goods decrease? A. The overhead is spread over more units B. The factory becomes more efficient C. New workers will accept lower wages D. To account for reduced marginal utility - answer โ โ A What is a necessary prerequisite for industrialization? A. Universal education B. A democratic government C. A food surplus D. The protection of human rights - answer โ โ C An investment made by a company or entity based in one country, into a company or entity based in another country is a Foreign Direct Investment. These FDI's differ substantially from indirect investments such as portfolio flows, wherein overseas institutions invest in equities listed on a nation's stock
exchange. Entities making direct investments typically have a significant degree of influence and control over the company into which the investment is made. Open economies with skilled workforces and good growth prospects tend to attract larger amounts of foreign direct investment than closed, highly regulated economies. The standard of living in the recipient country is also improved by higher tax revenue from the company that received the foreign direct investment. However, sometimes countries neutralize that increased revenue by offering tax incentives to attract the FDI in the first place. Most often, Open Econ - answer โ โ E An investment made by a company or entity based in one country, into a company or entity based in another country is a Foreign Direct Investment. These FDI's differ substantially from indirect investments such as portfolio flows, wherein overseas institutions invest in equities listed on a nation's stock exchange. Entities making direct investments typically have a significant degree of influence and control over the company into which the investment is made. Open economies with skilled workforces and good growth prospects tend to attract larger amounts of foreign direct investment than closed, highly regulated economies. The standard of living in the recipient country is also improved by higher tax revenue from the company that received the foreign direct investment. However, sometimes countries neutralize that increased revenue by offering tax incentives to attract the FDI in the first place. Overseas institutions - answer โ โ C His ____________ appearance made many feel comfortable in his moral judgments. A. Brittle B. Sagacious C. Prolific D. Repressive E. Destitute - answer โ โ B He can't do _____________, but he can provide consistent and solid performance.
Regardless of your ___________ on the ethical basis of stem-cell research, you must admit that it holds considerable scientific value. A. Inclusiveness B. Prowess C. Opinion D. Veracity E. Cowl - answer โ โ C A poorly performance is typical of students who take tests under pressure. A. poorly B. is C. who D. under E. No Error - answer โ โ A The Cuban Missile Crisis was averted when Kennedy struck a secret deal with the Soviets. A. was averted B. when C. struck D. with the Soviets E. No Error - answer โ โ E The President balked at the new constitution for it limited its powers as military leader. A. balked at B. the new constitution C. it
D. its E. No Error - answer โ โ D Years ago, there were much films on Biblical themes; now, the subject is almost taboo. A. ago B. much C. on D. now E. No Error - answer โ โ B Some people believe that among rap, country, and popular music, rap is better. A. some people B. believe C. among D. better E. No Error - answer โ โ D
