The humidity dropped an average of 1 1/3% each hour over the last six hours. What was the total change in humidity?


A: -8%


B: -6 1/3%


C: -7 1/3%


D: -6 1/2

Verified Answer :

C: - 7 1/3 %
You have to take 11/3 * 6 which equals 22 then divide 22 by 3 and it equals 7 1/3 since its dropping in humidity its negative. 

Answer: A . -8%

Step-by-step explanation:

Given : The humidity dropped an average of \(1\dfrac{1}{3}\%\) each hour over the last six hours.

which can be written as  \(-\dfrac{3+1}{3}\%=\dfrac{4}{3\%}\)

Then , the total change in humidity in 6 hours will be:-

\(-6\times\dfrac{4}{3\%}=-8\%\)

Hence, the total change in humidity = -8%

Thus , option A is the correct option.