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In a Country X, temperature decrease (in degrees) is linearly related to percentage increase in sale of water heaters and is given by the relation:
ΔT= ky+5
 
Where,
ΔT is temperature decrease (in degrees).
y is the increase in sale of water heaters (in percentage).
K is a constant.
A temperature decrease of 10 degrees results in a 1% increase in sale of water heaters. What would be the percentage increase in sale of water heaters when temperature decreases by 15 degrees?
  • a)
    1.5%
  • b)
    2%
  • c)
    2.5%
  • d)
    3%
  • e)
    3.5%
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
In a Country X, temperature decrease (in degrees) is linearly related ...
∆T=ky+5;
given: ∆T=10
y=1
therefore: 10= k(1) +5
=> k= 10-5=5
having determined value of k=5, we add new values as
∆T=15
k=5
y=?
thus, 15=5y+5
or, 5y=15-5
5y=10
y=2
since y is the value in percentage of increase in sale of water heater, therefore, the percentage of increase in water heater is 2%.
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Community Answer
In a Country X, temperature decrease (in degrees) is linearly related ...
∆T=ky +5
∆T=10
Y=1
k=?


10=k(1)+5

k=10-5

k=5

determine the new value ∆T=15

∆T=15

k=5

y=?

15=5(y)+5

5y=15-5

5y=10

y=2
answer is 2%
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In a Country X, temperature decrease (in degrees) is linearly related to percentage increase in sale of water heaters and is given by the relation:ΔT= ky+5Where,ΔT is temperature decrease (in degrees).y is the increase in sale of water heaters (in percentage).K is a constant.A temperature decrease of 10 degrees results in a 1% increase in sale of water heaters. What would be the percentage increase in sale of water heaters when temperature decreases by 15 degrees?a)1.5%b)2%c)2.5%d)3%e)3.5%Correct answer is option 'B'. Can you explain this answer?
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In a Country X, temperature decrease (in degrees) is linearly related to percentage increase in sale of water heaters and is given by the relation:ΔT= ky+5Where,ΔT is temperature decrease (in degrees).y is the increase in sale of water heaters (in percentage).K is a constant.A temperature decrease of 10 degrees results in a 1% increase in sale of water heaters. What would be the percentage increase in sale of water heaters when temperature decreases by 15 degrees?a)1.5%b)2%c)2.5%d)3%e)3.5%Correct answer is option 'B'. Can you explain this answer? for GMAT 2024 is part of GMAT preparation. The Question and answers have been prepared according to the GMAT exam syllabus. Information about In a Country X, temperature decrease (in degrees) is linearly related to percentage increase in sale of water heaters and is given by the relation:ΔT= ky+5Where,ΔT is temperature decrease (in degrees).y is the increase in sale of water heaters (in percentage).K is a constant.A temperature decrease of 10 degrees results in a 1% increase in sale of water heaters. What would be the percentage increase in sale of water heaters when temperature decreases by 15 degrees?a)1.5%b)2%c)2.5%d)3%e)3.5%Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for GMAT 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for In a Country X, temperature decrease (in degrees) is linearly related to percentage increase in sale of water heaters and is given by the relation:ΔT= ky+5Where,ΔT is temperature decrease (in degrees).y is the increase in sale of water heaters (in percentage).K is a constant.A temperature decrease of 10 degrees results in a 1% increase in sale of water heaters. What would be the percentage increase in sale of water heaters when temperature decreases by 15 degrees?a)1.5%b)2%c)2.5%d)3%e)3.5%Correct answer is option 'B'. Can you explain this answer?.
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