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In a survey of 25 students, it was found that 15 had taken Mathematics, 12 had taken Physics and 11 had taken Chemistry, 5 had taken Mathematics and Chemistry, 9 had taken Mathematics and Physics, 4 had taken Physics and Chemistry and 3 had taken all the three subjects. Find the number of students who had taken both Physics and Chemistry but not Mathematics.
In a survey of university students, 64 had taken Drama course, 94 had taken Dance course, 58 had taken a Singing course, 28 had taken Drama and singing course, 26 had taken Drama and dance course, 22 had taken Dance and singing course, and 14 had taken all the three courses. Find how many have taken only one course?
In an experimental study of the effects of a new drug on depression a double-blind control technique is used, which of the following persons should not be informed as to which drug, experimental or placebo is being administered to each individual research participant?
1. Research participants in the experimental group.
2. Research participants in the control group.
3. Persons administering the drug.
4. Persons evaluating the drug effect.
Select the correct answer:
Consider the statements about Crowding Out Effect 1. It is a situation when increased interest rates lead to a reduction in private investment spending such that it dampens the initial increase of total investment spending. 2. Government increases the spending for economic growth then it may lead to crowding out of funding. 3. Fiscal deficit may lead to the crowding out effect. Which of the statements given above is/are correct?
In the following question, two columns are given containing three phrases each. In the first column, phrases are A, B, and C and in the second column, the phrases are D, E and F. A phrase from the first column may or may not connect with a phrase from the second column to make a grammatically and contextually correct sentence. There are five options, four of which display the sequence(s) in which the phrases can be joined to form a grammatically and contextually correct sentence. If, none of the options given forms a correct sentence after combination, select 'None of these' as your answer. Column (1) Column (2) (A) Democracy makes all forces struggle repeatedly to realize  (D) their interests and devolves power from groups of people to sets of rules. (B)Individuals' reactions to the conflict are shaped  (E) increased wealth, proper functioning of a system, or enhanced well-being (C) The benefits of resource utilization may include (F) by their perception of the situation and people in the situation.
The following question contains four sentences which in their present arrangement lack coherence, connection, and development. There is only one way of rearranging them to make a coherent passage. Choose the correct arrangement from the alternative given and mark your answer as (1), (2), (3), or (4) in the answer sheet. a. Knowing the dangers of drug abuse, the governments of many countries have taken various steps to deal with the problem. b. This is the misuse of drugs - drugs obtained illegally and taken for the purpose of getting pleasure and thrills. c. Today we hear a lot about drug abuse. d. This practice can ruin a person's life and even lead to death
A drug that is highly effective in treating many types of infection can,at present,be obtained only from the bark of the ibora , a tree that is quite rare in the wild. It takes the bark of 5000 trees to make one kilogram of the drug. It follows, therefore, that continued production of the drug must inevitably lead to the ibore's extinction. Which of the following,if true, most seriously weakens the arguments above ?
A student is repeatedly calling a function file but gets no output. She has checked the file repeatedly so finally she asked her teacher about it. The teacher checked everything and finds the error and gives her a scolding. What is a silly mistake?
Consider the following statements about Lead 1. Lead in bone is released into blood during pregnancy and becomes a source of exposure to the developing foetus 2. Informal and substandard recycling of lead-acid batteries is one of the cause of Lead Poisoning Which of the above statements is/are correct?
A tattoo is a permanent mark or design made on your skin with pigments inserted through pricks into the skin's top layer. Typically, the tattoo artist uses a hand-held machine that acts much like a sewing machine, with one or more needles piercing the skin repeatedly. With every puncture, the needles insert tiny ink droplets. Tattoos carry the risk of creating skin diseases, allergic reactions, and further MRI complications.Since tattoo instruments come in contact with blood and bodily fluids, diseases may be transmitted if the instruments are used on more than one person without being sterilised. However, infection from tattooing in clean and modern tattoo studios employing single-use needles is rare. Assuming the information in the above paragraph is true, which of the following is true?