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In Madras, temperature at noon varies according to -t^2/2 + 8t + 3, where t is elapsed time. Find how much temperature more or less in 4 pm to 9pm.
  • a)
    At 8pm 7.5 more
  • b)
    At 9pm 7.5 more
  • c)
    At 7pm 7.5 more
  • d)
    At 9pm 7.4 more
Correct answer is option 'B'. Can you explain this answer?
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Verified Answer
In Madras, temperature at noon varies according to -t^2/2 + 8t + 3, wh...
In equation  first put t=9,
we will get 34.5...........................(1)
now put t=4,
we will get 27..............................(2)
so ans=34.5-27
=7.5
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Most Upvoted Answer
In Madras, temperature at noon varies according to -t^2/2 + 8t + 3, wh...
Given Information:
The temperature at noon in Madras varies according to the function -t^2/2 + 8t + 3, where t is the elapsed time.

Calculating Temperature Difference:
To find the temperature difference between 4 pm and 9 pm, we need to calculate the temperature at 4 pm and 9 pm separately using the given function and then find the difference.
- At 4 pm (t = 4):
Temperature = -(4^2)/2 + 8(4) + 3 = -8 + 32 + 3 = 27
- At 9 pm (t = 9):
Temperature = -(9^2)/2 + 8(9) + 3 = -40.5 + 72 + 3 = 34.5

Calculating the Difference:
Temperature difference = Temperature at 9 pm - Temperature at 4 pm
= 34.5 - 27
= 7.5
Therefore, the temperature difference between 4 pm and 9 pm is 7.5. Hence, the correct answer is option 'B) At 9 pm 7.5 more'.
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In Madras, temperature at noon varies according to -t^2/2 + 8t + 3, where t is elapsed time. Find how much temperature more or less in 4 pm to 9pm.a)At 8pm 7.5 moreb)At 9pm 7.5 morec)At 7pm 7.5 mored)At 9pm 7.4moreCorrect answer is option 'B'. Can you explain this answer?
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In Madras, temperature at noon varies according to -t^2/2 + 8t + 3, where t is elapsed time. Find how much temperature more or less in 4 pm to 9pm.a)At 8pm 7.5 moreb)At 9pm 7.5 morec)At 7pm 7.5 mored)At 9pm 7.4moreCorrect answer is option 'B'. Can you explain this answer? for Quant 2024 is part of Quant preparation. The Question and answers have been prepared according to the Quant exam syllabus. Information about In Madras, temperature at noon varies according to -t^2/2 + 8t + 3, where t is elapsed time. Find how much temperature more or less in 4 pm to 9pm.a)At 8pm 7.5 moreb)At 9pm 7.5 morec)At 7pm 7.5 mored)At 9pm 7.4moreCorrect answer is option 'B'. Can you explain this answer? covers all topics & solutions for Quant 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In Madras, temperature at noon varies according to -t^2/2 + 8t + 3, where t is elapsed time. Find how much temperature more or less in 4 pm to 9pm.a)At 8pm 7.5 moreb)At 9pm 7.5 morec)At 7pm 7.5 mored)At 9pm 7.4moreCorrect answer is option 'B'. Can you explain this answer?.
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