There are four optional language classes in a school; French, Spanish, Chinese and Italian.
Initially number of students for each class were 33, 23, 3, 13 respectively. But after the first week some of the students changes their classes. The way students change their classes is given below.
4 students go from French class to Spanish class.
7 students go from Spanish class to Chinese class.
2 students go from Italian class to French class.
5 students go from Italian class to Chinese class.
2 students go from French class to Chinese class.
1 student goes from Spanish class to French class.
1 student goes from Spanish class to Italian class.
Which pie chart, proportionally drawn, shows the state of number of student distribution in the classes.

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Here is the graph showing economic capacity of each game platforms over the years. Between the years given which one of the following information can be inferred from the chart?Deselect Answer

The table shows the amount budgeted and the amount spent for each of three accounts in a certain company. For which of these accounts did the amount spent differ from the amount budgeted by more than 6 percent of the amount budgeted?Deselect Answer

Each person who attended a company meeting was either a stockholder in the company, an employee of the company, or both. If 62 percent of those who attended the meeting were stockholders and 47 percent were employees, what percent were stockholders who were not employees?Deselect Answer

In a country, which one of the following diagrams represents the relations between; men, women, mothers and professors best?
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Despite the overwhelming scientific proof of the theory of evolution, and even acceptance of the theory by many high-ranking religious ministers, there are still sections of many religions that do not accept evolutions as true. One of the most prominent of these in western society is the Intelligent Design movement, which promotes the religious-based (and scientifically discredited) notion of Intelligent Design as a scientific theory. Intelligent Design proponents often point to complex issues of biology as proof that God is behind the design of human beings, much as a watchmaker is inherent in the design of a watch.

One part of anatomy that has been identified as supposedly supporting Intelligent Design is fingerprints, with some proponents arguing that they are a mark of individualism created by God, with no apparent function except to identify each human being as unique. This is incorrect, as fingerprints do have a well-documented function – namely channeling away of water to improve grip in wet conditions – in which hairless, smooth skinned hands otherwise struggle to grip smooth objects. The individualism of fingerprints is accounted for by the complexity of thousands of small grooves. Development is inherently affected by stochastic or random processes, meaning that the body is unable to uniformly control its development to ensure that fingerprints are the same in each human being. Clearly, the presence of individual fingerprints does nothing to support the so-called-theory of Intelligent Design.

Which of the following best illustrates the main conclusion of this passage?

High levels of alcohol consumption are proven to increase the risk of many non-infectious diseases, such as cancer, atherosclerosis and liver failure. James is a PhD student, and is analyzing the data from a large-scale study of over 500,000 people to further investigate the link between heavy alcohol consumption and health problems. In the study, participants were asked about their alcohol consumption, and then their medical history was recorded. His analysis displays surprising results, concluding that those with high alcohol consumption have a decreased risk of cancer. James decides that those carrying out the study must have incorrectly recorded the data.

Which of the following is NOT a potential reason why the study has produced these surprising results?

The illegal drug cannabis was recently upgraded from a class C drug to class B, which means it will be takenless in the UK, because people will know it is more dangerous. It also means if people are caught, possessingthe drug they will face a longer prison sentence than before, which will also discourage its use.

Which statement if true, most weakens the above argument?

There has been a recent change in the way the government helps small businesses. Whilst previously small businesses were given non-repayable grants to help them grow their profits, they can now only receive government loans that must be repaid with interest when the business turns a certain amount of profit. The government wants to support small businesses but studies have shown they are less likely to prosper under new scheme as they have been deterred from taking government money for fear of loan repayments.

Which one of the following can be concluded from the passage above?

WilderTravel Inc. is a company which organizes wilderness travel holidays, with activities such as trekking, mountain climbing, safari tours and wilderness survival courses. These activities carry inherent risks, so the directors of the company are drawing up a set of health regulations, with the aim of minimizing the risks by ensuring that nobody participates in activities if they have medical complications meaning that doing so may endanger them. They consider the following guidelines:

‘Persons with pacemakers, asthma or severe allergies are at significant risk of heart attack in low oxygen environments’. People under taking mountain climbing activities with WilderTravel frequently encounter environments with low oxygen levels. The directors therefore decide that in order to ensure the safety of customers on WilderTravel holidays, one step that must be taken is to bar those with pacemakers, asthma orallergies from partaking in mountain climbing.

Which of the following best illustrates a flaw in this reasoning?

Mansa Musa is sometimes considered to have been histories richest man, what empire did he rule?

Japan invaded what region of China during the early 20^th century?

In 1452 Isabella and Ferdinand united what country?Deselect Answer

What “effect” is the change caused in a wavelength by the speed an observer is travelling?Deselect Answer

Which of these American cities was completely flooded during Hurricane Katrina?Deselect Answer

In Law, to commit a crime with Mens Rea means to commit a crime with what?Deselect Answer

The 2008 Olympic Games were held in what country?

In January 2018, what did scientists in China cloned first?Deselect Answer

What American actor wrote the critically acclaimed novel No Country for Old Men in 2005?

Newspeak is a word which comes from which book by George Orwell?Deselect Answer

Which of the following are connected by hydrogen bonds?Deselect Answer

The graph below shows the effect of substrate concentration on enzyme activity. What Conclusion can be drawn about section X of the graph?Deselect Answer

What Property of water makes it a good evaporative coolant?Deselect Answer

The Percentage of thymine in the DNA of an organism is approximately 30%. What is the percentage of guanine?Deselect Answer

What is denaturation?Deselect Answer

How do cells capture the energy released by cellular respiration?Deselect Answer

Which Type of molecule is shown in the diagram below?
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A number of different proteins are involved in nerve function. Which of the following does not require a membrane protein?Deselect Answer

What is the difference between galactose and lactose?Deselect Answer

The Following Diagram Shows a short stretch of DNA. What base are indicated by Label Y and Z?

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Which Process Produces The Most ATP per molecule of glucose?Deselect Answer

This question refers the following micrograph of a liver cell.

In which organelle does The Production of ATP, due chemiosmosis, occur?Deselect Answer

Which describes these molecules correctly?

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What is a role of sulfur in living organisms?Deselect Answer

Which of the following is the best definition of cellular respiration?Deselect Answer

Which compound is not paired with its correct name?Deselect Answer

When the equation: C₂H₆ + O₂ → CO₂ + H₂O is completely balanced using the lowest whole number coefficients, the sum of the coefficients will be

Which solutions have a concentration of 1.0 M?
I. 74 grams of calcium hydroxide dissolved to make 1 liter of solution (Ca: 40 gr/mol, O: 16 gr/mol, H:1 gr/mol)
II. 74.5grams of potassium chloride dissolved to make 1 liter of solution (K: 39 gr/mol, Cl:35.5 gr/mol)
III. 87 grams of lithium bromide dissolved to make 1 liter solution (Li:6.94 gr/mol, Br: 79.9 gr/mol)Deselect Answer

According the reaction 3H₂ + N₂ → 2NH₃, how many grams of hydrogen gas and nitrogen gas are need to make exactly 68 grams of ammonia? (H:1, N:14 gr/mol)Deselect Answer

An alkaline earth metal, element M, reacts with oxygen. What is going to be the general formula for the compound formed?Deselect Answer

How many pi bonds are there in a molecule of NC—CH₂—CH₂—CO—NH—CH CH₂?Deselect Answer

A compound was analyzed and found to be 12.1% C,71.7% Cl, and 16.2% O. What is the empirical formula for this compound? (C:12 gr/mol, O:16 gr/mol, Cl: 35.5 gr/mol)Deselect Answer

A neutral atom has a total of 17 electrons. The electron configuration in the outer most principal energy level will look closest toDeselect Answer

Which of the following compound will have an atom with a molecular geometry that is described as trigonal planar with respect to other atoms present?

I. BF₃
II. CH₂=CH₂
III. CyclopropaneDeselect Answer

If The Pressure on a gas is doubled, the volume of the gas will be

The equation shows the reaction between magnesium and sulfuric acid.
[Ar: H, 1; O, 16; Mg, 24; S, 32]

Mg + H₂SO₄ → MgSO₄ + H₂

In this reaction, which mass of magnesium sulfate is formed when 6g of magnesium react with excess sulfuric acid?

The structure of an organic compound, X, is shown.

What is the molecular formula of X?

An aluminium atom has a nucleon number of 27 and a proton number of 13. How many neutrons does this aluminium atom contain?

Which two compounds are not isomers of each other?Deselect Answer

Which statement is false?Deselect Answer

What is the sum of real roots of the above equality?Deselect Answer

A regular hexagon has a longest diagonal with the length 6 cm. What is the sum of the length of all diagonals in this hexagon?Deselect Answer

A resultant force greater than zero applied to a moving object in the reverse direction. Which one of the followings is the true about the acceleration and velocity of the object just after the applied force?Deselect Answer

Which one of the followings is the equation of the line that passes through the point (1, -3) and parallel to the line with the equation 2y − 3 = 3x.

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Three rectangles named A, B and C have dimensions 2nm x 5µm, 3pm x 5mm, 4fm x 50 cm respectively. What is their order of area (smallest first)?Deselect Answer

A metal wire with a 2 cm² square cross section is 2 km long. What is the material’s resistivity if its electrical resistance is 3 Ω.Deselect Answer

In the same closed container there are two gases, O₂ and He, with a constant temperature.
I. Oxygen and hydrogen molecules have equal mean kinetic energy.
II. Average oxygen molecule has smaller velocity than that of hydrogen
III. Each gas has the same partial pressure.
IV. All oxygen molecules has the same velocity.
Which one(s) of the above statements is/are must be true for these two gases? (⁴He, ¹⁶O)Deselect Answer

Evaluate
(2 x 10³)⁴ x (5 x 10⁻⁵)³Deselect Answer

Suppose a woman does 500 J of work and 9500 J of heat transfer occurs into the environment in the process.
I. What is the change in her internal energy, assuming no change in temperature or consumption of food?
II. What is her efficiency?
What are the answersDeselect Answer

A, B, C and D are points on the circumference of a circle. The line EF is a tangent to the circle. Find x-2y 

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