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A teacher takes 3 children from her class to the zoo at a time as often as she can, but she does not take the same three children to the zoo more than once. She finds that she goes to the zoo 84 times more than a particular child goes to the zoo. The number of children in her class is
  • a)
    12
  • b)
    10
  • c)
    60
  • d)
    None of these
Correct answer is option 'B'. Can you explain this answer?
Most Upvoted Answer
A teacher takes 3 children from her class to the zoo at a time as ofte...
nC3 - n-1C2 = 84, where n is the number of students. Now use options.
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Read the case below and answer the questions that follow:The evidence for hereditary influences on intelligence comes mainly from studies on twins and adopted children. The intelligence of identical twins reared together correlates almost 0.90. Twins separated early in childhood also show considerable similarity in their intellectual, personality and behavioural characteristics. The intelligence of identical twins reared in different environments correlated 0.72, those of fraternal twins reared together correlated almost 0.60, and those of brothers and sisters reared together correlated about 0.50, while siblings reared apart correlated about 0.25. Another line of evidence comes from the studies of adopted children, which shows that children’s intelligence is more similar to their biological rather than adoptive parents. With respect to the role of the environment, studies have reported that as children grow in age, their intelligence level tends to move closer to that of their adoptive parents. Children from disadvantaged homes adopted into families with higher socioeconomic status exhibit a large increase in their intelligence scores. There is evidence that environmental deprivation lowers intelligence while rich nutrition, good family background, and quality schooling increases intelligence. There is a general consensus among psychologists that intelligence is a product of complex interaction of heredity (natur e) and environment (nurture). Heredity can best be viewed as something that sets a range within which an individual’s development is actually shaped by the support and opportunities of the environment.Choose the correct option:Q. Children’s intelligence is more closely related to their _____________ parents.

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A teacher takes 3 children from her class to the zoo at a time as often as she can, but she does not take the same three children to the zoo more than once. She finds that she goes to the zoo 84 times more than a particular child goes to the zoo. The number of children in her class isa)12b)10c)60d)None of theseCorrect answer is option 'B'. Can you explain this answer?
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A teacher takes 3 children from her class to the zoo at a time as often as she can, but she does not take the same three children to the zoo more than once. She finds that she goes to the zoo 84 times more than a particular child goes to the zoo. The number of children in her class isa)12b)10c)60d)None of theseCorrect answer is option 'B'. Can you explain this answer? for Humanities/Arts 2025 is part of Humanities/Arts preparation. The Question and answers have been prepared according to the Humanities/Arts exam syllabus. Information about A teacher takes 3 children from her class to the zoo at a time as often as she can, but she does not take the same three children to the zoo more than once. She finds that she goes to the zoo 84 times more than a particular child goes to the zoo. The number of children in her class isa)12b)10c)60d)None of theseCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Humanities/Arts 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A teacher takes 3 children from her class to the zoo at a time as often as she can, but she does not take the same three children to the zoo more than once. She finds that she goes to the zoo 84 times more than a particular child goes to the zoo. The number of children in her class isa)12b)10c)60d)None of theseCorrect answer is option 'B'. Can you explain this answer?.
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